{"title":"MiniSAS-HD (SFF-8643)","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eHIGH DENSITY RECEPTACLE IS THE NEXT GENERATION SAS SYSTEM\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe SAS 2.1 standard meets SAS-3 next generation speed and density requirements that provides faster data transmission and more bandwidth for end users. The lowprofile system provides 4X and 8X cable-plug options, and the external I\/O connectors include eight sideband signals per 4X port, 1x4 configuration for up to 192Gb\/s of total bandwidth. Mini-SAS HD is designed to save space with its increased density and reduced size as compared to the Mini-SAS 2.0, while following complacency with the standard. The Mini-SAS HD connector system has a 2-row, right angle connector with data rates reaching 32Gb\/s per channel, which can meet SAS-4 and PCIe\u003csup data-mce-fragment=\"1\"\u003e®\u003c\/sup\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eGen 4\/5 application.\u003c\/p\u003e","products":[{"product_id":"diliving-minisas-hd-backplane-to-4-sata-host-controller-4-sata-to-sff-8643-cable-sff-8643-for-backplane-4-sata-for-controller-connect-2-46ft-75cm","title":"DiLinKer 4x SATA to MiniSAS HD (SFF-8643) Reverse Breakout Cable, 75cm","description":"\u003cp\u003eThe mirror image of a breakout cable. Four discrete 7-pin SATA connectors on the controller side fan into a single \u003cstrong\u003eSFF-8643 (MiniSAS HD)\u003c\/strong\u003e plug that lands on the backplane. Cages that expose one 8643 for four drive bays expect exactly this wiring — and a forward breakout cable will not do the same job simply because the connectors fit.\u003c\/p\u003e\n\u003ch2\u003eThis is the reverse breakout\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour SATA ports in, one 8643 out.\u003c\/strong\u003e Use it when the controller only has individual SATA headers but the cage terminates in a 36-pin MiniSAS HD plug. The four SATA ends sit on the controller; the 8643 end sits on the backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot a flipped forward cable.\u003c\/strong\u003e We sell the forward version as a separate SKU, and the difference is more than which end you point at the drives. Order by where your SFF-8643 physically sits and the right part arrives first time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeating matters more than people expect.\u003c\/strong\u003e The 8643 shell has a latch bar; on a backplane mounted behind a fan wall it is easy to leave it half engaged. Four drives that all fail to appear is usually this, not four dead drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75 cm of reach.\u003c\/strong\u003e Enough to run from a front-loaded controller up and around to a mid-chassis backplane without pulling the connector under tension.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eBackplane side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eController side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × SATA 7-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 (one per SATA leg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e75 cm \/ 2.46 ft (connector to connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector generation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSFF-8643 (12 Gb\/s SAS generation); SATA legs up to 6 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eOrientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eReverse breakout — SATA on controller, 8643 on backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB0CHMB6WKX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBackplanes that expose a single SFF-8643 connector for a four-bay cage\u003c\/li\u003e\n\u003cli\u003eControllers, HBAs or motherboards with four discrete 7-pin SATA ports\u003c\/li\u003e\n\u003cli\u003eSATA drives in the cage — each bay appearing as its own port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControllers with an SFF-8643 output — that is the forward breakout, a different SKU\u003c\/li\u003e\n\u003cli\u003eSAS drives behind the backplane: the four legs are 7-pin SATA\u003c\/li\u003e\n\u003cli\u003eBackplanes that fan out to 8 bays from two 8643 connectors — that needs two of these cables and two free SATA groups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eServer backplane fed by a board with only SATA headers.\u003c\/strong\u003e A common layout on entry storage boards: four SATA ports on the board, one 8643 on the cage. This cable is the entire adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive-less rebuilds and lab cages.\u003c\/strong\u003e Bench setups where the cage and the board come from different generations and only the connector standard is shared.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing a lost OEM reverse cable.\u003c\/strong\u003e Same connector pair, same 75 cm reach, same four-leg fan-out — a direct replacement when the original part number is not orderable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow is this different from the forward breakout cable?\u003c\/h3\u003e\n\u003cp\u003eDirection of the SATA ends. On the forward version the SFF-8643 goes to the controller and the SATA ends to the drives; here the SATA ends go to the controller and the 8643 goes to the backplane. They are two separate SKUs, and ordering by \"where is my 8643\" gets it right every time.\u003c\/p\u003e\n\u003ch3\u003eCan I just flip the cable around and use it as a forward breakout?\u003c\/h3\u003e\n\u003cp\u003eWe do not recommend planning a build that way. The two cables are specified and sold separately for a reason; if your 8643 is on the host, order the forward version — it is the same price.\u003c\/p\u003e\n\u003ch3\u003eWill it work with SAS drives?\u003c\/h3\u003e\n\u003cp\u003eNo. The fan-out legs are 7-pin SATA connectors. SAS drives need SFF-8482 ends, which is a different assembly.\u003c\/p\u003e\n\u003ch3\u003eHow do I confirm my backplane takes four SATA into one 8643?\u003c\/h3\u003e\n\u003cp\u003eCount the SATA-equivalent ports the cage presents. If one 36-pin MiniSAS HD connector covers four bays, this is the cable. If it covers eight bays from two 8643 connectors, you need two cables and eight free SATA ports.\u003c\/p\u003e\n\u003ch3\u003eOnly three of four drives appear. Where do I look?\u003c\/h3\u003e\n\u003cp\u003eReseat the 8643 latch first, then check the fourth SATA leg at the controller. Swapping two legs tells you in seconds whether the fault follows the cable or stays with the drive bay.\u003c\/p\u003e\n\u003ch3\u003eDoes the length include the connectors?\u003c\/h3\u003e\n\u003cp\u003eNo. 75 cm is cable length from shell to shell; the connector bodies add a few centimetres at each end when you are measuring clearance inside a chassis.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × 4 × SATA to MiniSAS HD (SFF-8643) reverse breakout cable, 75 cm (SKU B0CHMB6WKX)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-2-46ft-75cm\"\u003eForward breakout — MiniSAS HD (SFF-8643) host to 4x SATA\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-minisas-hd-to-minisas-hd-sff-8643-to-sff-8643-cable-75cm\"\u003eMiniSAS HD to MiniSAS HD, SFF-8643 to SFF-8643, 75cm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/slimsas-lp-8x-to-8x-sata-sff-8654-lp-85cm\"\u003eSlimSAS LP 8X to 8x SATA, SFF-8654 LP 74-pin, 85cm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981327647016,"sku":"B0CHMB6WKX","price":14.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/1-1_3cebeace-fdc2-450a-bb48-e35eafb8df07.jpg?v=1712822183"},{"product_id":"diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-2-46ft-75cm","title":"DiLinKer MiniSAS HD (SFF-8643) Host to 4x SATA Breakout Cable, 75cm","description":"\u003cp\u003eFour SATA drives, one connector on the controller. This is the \u003cstrong\u003eforward breakout\u003c\/strong\u003e: the SFF-8643 (MiniSAS HD) plug goes into the RAID card, HBA or motherboard header, and the four 7-pin SATA ends go to the drives. 75 cm overall. The single most common way to get this purchase wrong is to buy it for a backplane — read the next section before you order.\u003c\/p\u003e\n\u003ch2\u003eWhich end goes where\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe SFF-8643 end belongs on the host.\u003c\/strong\u003e Controller, HBA, or a motherboard header labelled MiniSAS HD. Four drives then hang off the four SATA ends, each on its own link.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf your SFF-8643 is on the backplane, this is the wrong cable.\u003c\/strong\u003e A backplane that exposes one 8643 for a four-bay cage needs the \u003cem\u003ereverse\u003c\/em\u003e breakout, which we sell as a separate SKU. The connectors are identical; the cable is not interchangeable just because it fits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour independent links, not a port multiplier.\u003c\/strong\u003e Each SATA leg is its own port as far as the controller is concerned, so drives enumerate individually, hot-swap normally and spin up in whatever stagger the controller applies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 Gb\/s generation connector, 6 Gb\/s drives.\u003c\/strong\u003e SFF-8643 is the 12 Gb\/s SAS connector generation; the SATA legs run at the drive's own rate, which today means up to 6 Gb\/s. You are not limited by the connector, you are limited by the drive and the port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eHost side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × SATA 7-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 (one per SATA leg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e75 cm \/ 2.46 ft (connector to connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector generation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSFF-8643 (12 Gb\/s SAS generation); SATA legs up to 6 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eOrientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eForward breakout — 8643 on host, SATA on drives\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB0CHMDQ2P7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRAID cards, HBAs and motherboards with an SFF-8643 (MiniSAS HD) output\u003c\/li\u003e\n\u003cli\u003eUp to four SATA hard drives or SSDs with standard 7-pin data connectors\u003c\/li\u003e\n\u003cli\u003eAny chassis where the drives are cabled directly, with no backplane in between\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBackplanes whose SFF-8643 port faces the drives — use the reverse breakout version instead\u003c\/li\u003e\n\u003cli\u003eSAS drives: the four fan-out legs are 7-pin SATA, so a SAS drive needs a cable with SFF-8482 connectors\u003c\/li\u003e\n\u003cli\u003eMore than four drives, or a single 8643 port split into more than four links\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTower or rack build with direct-cabled drives.\u003c\/strong\u003e Four drives in a cage with no backplane, one cable from the HBA to all four. Fewer connectors, less cable clutter, one part number to keep in stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdding drives to a workstation board.\u003c\/strong\u003e Boards that expose a MiniSAS HD header for four SATA ports instead of four separate SATA sockets — common on workstation and embedded boards where board space is tight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing four separate SATA cables.\u003c\/strong\u003e One 8643 connector at the card instead of four, which matters when the card edge is crowded or the cabling has to pass through a tight bulkhead opening.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I know whether I need the forward or the reverse breakout?\u003c\/h3\u003e\n\u003cp\u003eLook at where the SFF-8643 connector sits. On a \u003cstrong\u003econtroller or motherboard\u003c\/strong\u003e, you want this forward cable. On a \u003cstrong\u003ebackplane\u003c\/strong\u003e, you want the reverse version. The SATA ends always belong on the discrete-port side, whichever end that is.\u003c\/p\u003e\n\u003ch3\u003eCan I connect fewer than four drives?\u003c\/h3\u003e\n\u003cp\u003eYes. Unused SATA legs simply stay unplugged; the controller sees four ports and only the populated ones link up. Nothing needs terminating.\u003c\/p\u003e\n\u003ch3\u003eCan I run SAS drives on it?\u003c\/h3\u003e\n\u003cp\u003eNo. The fan-out side is four 7-pin SATA connectors, and a SAS drive has a single combined SAS connector (SFF-8482). SAS drives need a breakout with SFF-8482 ends; write to us and we will point you at the right one.\u003c\/p\u003e\n\u003ch3\u003eIs there a separate sideband cable?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a data-only assembly: four lanes leaving one 8643 shell. There is no separate sideband lead to route.\u003c\/p\u003e\n\u003ch3\u003eWhat is the 75 cm measured from?\u003c\/h3\u003e\n\u003cp\u003eFrom the SFF-8643 shell to the end of the SATA connectors, cable length only — not including the strain relief or the connector bodies.\u003c\/p\u003e\n\u003ch3\u003eA drive is not detected. What should I check first?\u003c\/h3\u003e\n\u003cp\u003eIn order: the 8643 plug fully latched at the controller, the drive receiving power, and the controller port enabled in firmware. If three of four drives work, swap the SATA legs around — that tells you immediately whether the fault is in the cable or in one drive port.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × MiniSAS HD (SFF-8643) to 4 × SATA breakout cable, 75 cm (SKU B0CHMDQ2P7)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-minisas-hd-backplane-to-4-sata-host-controller-4-sata-to-sff-8643-cable-sff-8643-for-backplane-4-sata-for-controller-connect-2-46ft-75cm\"\u003eReverse breakout — 4x SATA to MiniSAS HD (SFF-8643) for backplanes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-minisas-hd-to-minisas-hd-sff-8643-to-sff-8643-cable-75cm\"\u003eMiniSAS HD to MiniSAS HD, SFF-8643 to SFF-8643, 75cm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-slimsas-4x-to-4-sata-sff-8654-38pin-to-4xsata7pin-cable-100cm\"\u003eSlimSAS 4X to 4x SATA, SFF-8654 38-pin to SATA\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981332463912,"sku":"B0CHMDQ2P7","price":14.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/610Ezbl6MxL.jpg?v=1712027376"},{"product_id":"slimsas-8x-to-2x-minisas-hd-80cm-05-60002-00","title":"DiLinKer SlimSAS 8X to 2x MiniSAS HD 4X NVMe Cable, SFF-8654 to 2x SFF-8643, Supermicro Purley, 80cm (Broadcom 05-60002-00, DL-A640)","description":"\u003cp\u003eThe \u003cstrong\u003eNVMe\u003c\/strong\u003e variant of the 8x SlimSAS fan-out, wired for one specific family of backplanes. This 80 cm cable converts a SlimSAS 8x host port (SFF-8654, 74-pin) into two MiniSAS HD x4 ports (SFF-8643, 36-pin) using the pinout Broadcom ships as \u003cstrong\u003e05-60002-00\u003c\/strong\u003e (cable part 5067-6862) — the NVMe cable for \u003cstrong\u003eSupermicro Purley\u003c\/strong\u003e backplanes. Those boards carry NVMe on SFF-8643 using an older legacy pinout rather than the SFF-9402 assignment, so a general-purpose SAS\/SATA cable leaves the drives undetected.\u003c\/p\u003e\n\u003ch2\u003eWhy this is the NVMe variant\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVMe pinout, not the SAS one.\u003c\/strong\u003e PCIe lanes and sidebands are assigned for NVMe on the SFF-8643 end. This is the difference that makes a Supermicro Purley NVMe bay enumerate at all.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched to Supermicro Purley backplanes.\u003c\/strong\u003e Broadcom lists this part specifically for Purley-generation NVMe backplanes. The original is built with \u003cstrong\u003ewhite\u003c\/strong\u003e SFF-8643 connectors — that white shell sits on the backplane and is your cue there. Our cable uses dark connectors on both ends, exactly like the SAS\/SATA variant, so the two are indistinguishable until you read the label.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 lanes in, 2 × x4 out.\u003c\/strong\u003e Each MiniSAS HD port carries a full four-lane PCIe link. No switch, no retimer, no BIOS setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne cable instead of two.\u003c\/strong\u003e A single 8x connector feeds both NVMe bays, halving the cable count across the airflow path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e80 cm of reach.\u003c\/strong\u003e Sized for 1U and 2U Purley chassis where the controller sits ahead of the NVMe cage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eHost connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSlimSAS 8x, SFF-8654, 74-pin plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eDevice connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e2 × MiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLane configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e8 host lanes → 2 × 4 device lanes (PCIe)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eDesigned for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eNVMe drives on Supermicro Purley backplanes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eNVMe (PCIe); a PCIe-capable host port is required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003ePinout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSupermicro Purley NVMe — not the SFF-9402 NVMe assignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e80 cm \/ 31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eBroadcom MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e05-60002-00 (cable part 5067-6862), cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eFactory part number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eDL-A640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eConnector colour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eDark, both ends — identical to the SAS\/SATA variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eB0B5CWK6V1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupermicro Purley-generation backplanes with NVMe on SFF-8643 (the white connectors are on the backplane, not on the cable).\u003c\/li\u003e\n\u003cli\u003eTri-mode and NVMe-capable controllers with SlimSAS 8x ports, including Broadcom 94xx and 96xx series.\u003c\/li\u003e\n\u003cli\u003eSystems where the existing cable is marked Broadcom 05-60002-00 or 5067-6862.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS\/SATA backplanes\u003c\/strong\u003e — use the 05-60003-00 variant; this pinout is NVMe-specific.\u003c\/li\u003e\n\u003cli\u003eNVMe backplanes built to SFF-9402 with SFF-8643 connectors — the sideband assignment is different, so use the 05-60001-00 or 05-60004-00 variant.\u003c\/li\u003e\n\u003cli\u003eNon-Supermicro NVMe cages until you check the pinout. Most newer cages use SFF-9402 and need a different cable; send us the backplane model and we will confirm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurley NVMe tier.\u003c\/strong\u003e Two NVMe bays fed from one 8x port on a 94xx or 96xx tri-mode controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing a lost OEM cable.\u003c\/strong\u003e A like-for-like spare for a system that shipped with Broadcom 05-60002-00 \/ 5067-6862.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNVMe cache alongside SAS storage.\u003c\/strong\u003e A dedicated pair of PCIe links, separate from the SAS\/SATA runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I know whether my backplane needs this cable or the SAS\/SATA one?\u003c\/h3\u003e\n\u003cp\u003eLook at the SFF-8643 connectors on the backplane, not on the cable. If they are \u003cstrong\u003ewhite\u003c\/strong\u003e and the board is a Supermicro Purley design carrying NVMe drives, this is the cable (Broadcom marks 05-60002-00 the same way). If they are the usual black SAS\/SATA ports, or the cage is double-plumbed for U.2 and SAS\/SATA, you want the 05-60003-00 variant instead. Our own cable is dark on both variants and carries no colour code, so check the label: \u003cstrong\u003eDL-A640\u003c\/strong\u003e for this one, \u003cstrong\u003eRSL74-7657\u003c\/strong\u003e for the SAS\/SATA version. Both fit physically; the wiring is what differs.\u003c\/p\u003e\n\u003ch3\u003eYour two 80 cm variants look the same — how do I avoid mixing them up?\u003c\/h3\u003e\n\u003cp\u003eThey are the same assembly except for the wiring, and both use dark connectors, so they look identical in the hand. Go by the label on the cable, not by the connector colour. If a cable arrives unlabelled, or the labels get swapped in a parts bin, contact us with the order number before you install it: fitting the wrong pinout does no damage, but the drives will not enumerate.\u003c\/p\u003e\n\u003ch3\u003eWhat happens if I fit the wrong variant?\u003c\/h3\u003e\n\u003cp\u003eThe connectors mate and nothing is damaged, but the drives do not enumerate: the host sees no link because the PCIe lanes or sidebands land on the wrong pins. If a new build shows empty drive slots, check the pinout variant before replacing hardware.\u003c\/p\u003e\n\u003ch3\u003eWill it work in a non-Supermicro NVMe backplane?\u003c\/h3\u003e\n\u003cp\u003eOnly if that backplane also uses this older NVMe pinout. Most backplanes with SFF-8654 or OCuLink connectors follow SFF-9402 and need a different cable. Tell us the backplane model and we will confirm before you order.\u003c\/p\u003e\n\u003ch3\u003eCan I run SAS or SATA drives on it?\u003c\/h3\u003e\n\u003cp\u003eNo. Broadcom classifies this part as NVMe-only. For SAS\/SATA drives in an SFF-8643 cage, use the 05-60003-00 variant.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SlimSAS 8x to 2 × MiniSAS HD NVMe cable, 80 cm — part number DL-A640 on the label (SKU B0B5CWK6V1)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eBacked by a 24-month warranty. If a link trains at reduced width or a drive is not detected, contact us with your controller and backplane model numbers and we will confirm the correct pinout variant before you return anything. Quote the part number printed on the cable label — the two 80 cm variants look identical, so the label is the only reliable way to tell them apart.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/products\/slimsas-8x-to-2x-minisas-hd-80cm-05-60003-00\"\u003eSlimSAS to 2× MiniSAS HD — SAS\/SATA variant (05-60003-00)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/products\/mcio-x8-to-2x-minisas-hd-sff-ta-1016-sff-8643-gen4-80cm\"\u003eMCIO x8 to 2× MiniSAS HD, PCIe Gen4, 80 cm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981348651304,"sku":"B0B5CWK6V1","price":23.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/1-1_7325c576-852f-4ef8-9e26-ab776f957e99.jpg?v=1713168924"},{"product_id":"diliving-slimsas-4x-to-minisas-hd-sff-8654-38pin-to-sff-8643-36pin-cable-100cm","title":"DiLinKer SlimSAS 4X to MiniSAS HD, SFF-8654 38pin to SFF-8643 36pin Cable 100cm","description":"\u003cp\u003eBridge two generations of storage cabling with one cable. The DiLinKer 100cm assembly connects a SlimSAS 4x host connector (SFF-8654, 38-pin) to a MiniSAS HD device port (SFF-8643, 36-pin), carrying the same four lanes between the newer and previous connector standards. Use it when the controller has moved to SlimSAS but the backplane or adapter in the chassis is still SFF-8643.\u003c\/p\u003e\n\u003ch2\u003eWhy this cable\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew host, old backplane.\u003c\/strong\u003e Keeps SFF-8643 drive cages and adapters in service when the controller side is SlimSAS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour lanes, straight through.\u003c\/strong\u003e A 1:1 x4 link with no switch chip in the path.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol follows the host.\u003c\/strong\u003e Carries SAS or PCIe — tri-mode controllers and PCIe SlimSAS headers both work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim 38-pin connector.\u003c\/strong\u003e The half-width SlimSAS plug fits the densest controller layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100cm working length.\u003c\/strong\u003e Standard reach for 1U and 2U routing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eHost connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003eSlimSAS 4x, SFF-8654, 38-pin plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eDevice connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003eMiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003e4 (x4), straight 1:1 mapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eInterface speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003eUp to SAS 4.0, 24 Gb\/s per lane (protocol and speed follow the host)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003e100 cm \/ 39.37 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003eRSL38-1067\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003eB0B5CCLGNF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px; background: #fafafa; width: 38%;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px 10px;\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS and tri-mode controllers with a SlimSAS 4x (38-pin) port.\u003c\/li\u003e\n\u003cli\u003eBoards with SlimSAS 4x headers.\u003c\/li\u003e\n\u003cli\u003eSFF-8643 backplanes, drive cages and U.2 adapters.\u003c\/li\u003e\n\u003cli\u003e12G and 6G equipment — links negotiate down to the slowest component.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSlimSAS 8x (74-pin) hosts — this cable is 4x on the host side.\u003c\/li\u003e\n\u003cli\u003eMCIO (SFF-TA-1016) host ports.\u003c\/li\u003e\n\u003cli\u003eDrives connected directly. The SFF-8643 end must meet a backplane, cage or adapter port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eController refresh.\u003c\/strong\u003e A SlimSAS-generation card driving an existing SFF-8643 backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed-generation storage.\u003c\/strong\u003e SAS or NVMe devices on SFF-8643 hardware fed from a SlimSAS host.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort chassis runs.\u003c\/strong\u003e 100 cm suits 1U builds where the 100 cm version would need coiling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhich end is newer — SlimSAS or MiniSAS HD?\u003c\/h3\u003e\n\u003cp\u003eSlimSAS (SFF-8654) is the newer standard, designed for SAS 4.0 and denser boards. MiniSAS HD (SFF-8643) is the previous generation. This cable lets equipment from both generations work together.\u003c\/p\u003e\n\u003ch3\u003eCan I run NVMe through it?\u003c\/h3\u003e\n\u003cp\u003eYes, if the host port carries PCIe — tri-mode controllers and PCIe SlimSAS headers do. The device side must also be PCIe equipment, such as an SFF-8643 NVMe backplane or U.2 adapter.\u003c\/p\u003e\n\u003ch3\u003eWill a 12G backplane work from a 24G controller?\u003c\/h3\u003e\n\u003cp\u003eYes. The link negotiates to 12 Gb\/s. The cable does not limit the link.\u003c\/p\u003e\n\u003ch3\u003eDo I need to check the pinout first?\u003c\/h3\u003e\n\u003cp\u003eOn standard equipment, no — both ends follow their SFF specifications. If your backplane comes from a system vendor that re-purposes connectors, send us the model before ordering.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × SlimSAS 4x to MiniSAS HD cable, 100 cm (SKU B0B5CCLGNF)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBacked by a 24-month warranty. If a link trains at reduced width or does not appear, contact us with your controller and device models and we will help you isolate the cause.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/slimsassff-8654\"\u003eAll SlimSAS (SFF-8654) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981349929256,"sku":"B0B5CCLGNF","price":19.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/sddfd_4bc29260-e217-4a40-b452-b12632abda48.jpg?v=1713164034"},{"product_id":"slimsas-8x-to-2x-minisas-hd-80cm-05-60003-00","title":"DiLinKer SlimSAS 8X to 2x MiniSAS HD 4X Cable, SFF-8654 to 2x SFF-8643, SAS\/SATA, 80cm (Broadcom 05-60003-00, RSL74-7657)","description":"\u003cp\u003eThe \u003cstrong\u003eSAS\/SATA\u003c\/strong\u003e variant of the 8x SlimSAS fan-out. This 80 cm cable takes one SlimSAS 8x host connector (SFF-8654, 74-pin) and splits its eight lanes into two MiniSAS HD x4 ports (SFF-8643, 36-pin). It is the pinout that Broadcom ships as \u003cstrong\u003e05-60003-00\u003c\/strong\u003e (cable part 5067-6866, listed as “x8 8654 to 2x4 8643, 9402 SAS”) — the one for backplanes that carry SAS or SATA drives. That means either a SAS\/SATA-only backplane, whose SFF-8643 ports carry nothing but SAS\/SATA, or a double-plumbed backplane that brings two separate wirings to the same drive bays: one U.2 (PCIe) path and one SAS\/SATA path. This cable feeds the SAS\/SATA path, the one whose backplane-side connector is SFF-8643.\u003c\/p\u003e\n\u003ch2\u003eWhy this is the SAS\/SATA variant\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for SAS\/SATA backplanes.\u003c\/strong\u003e On a SAS\/SATA-only cage the SFF-8643 ports carry SAS\/SATA and nothing else. On a double-plumbed cage the same bays also have a U.2 path; you populate a bay with one drive type and cable only the matching path. Both paths land on SFF-8643 at the backplane, which is why the pinout, not the connector, is what identifies this assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS 4.0, 24 Gb\/s per lane.\u003c\/strong\u003e Backward compatible with 12G and 6G equipment — every link negotiates to the slowest component in the chain, so an older expander costs speed, not compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFF-9402 sideband assignment.\u003c\/strong\u003e The sidebands follow the SAS definition, so SGPIO and two-wire backplane management keep working exactly as they did with the previous generation of cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 lanes in, 2 × x4 out.\u003c\/strong\u003e A passive lane split — no switch chip, no retimer, nothing to configure in the OS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabelled by part number, not by colour.\u003c\/strong\u003e Both pinout variants use dark connectors and look identical in the hand, so this assembly ships with \u003cstrong\u003eRSL74-7657\u003c\/strong\u003e and the Broadcom cross-reference printed on its label. Match the label, not the connector colour.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e80 cm, the chassis-neutral length.\u003c\/strong\u003e Long enough for controller-to-midplane routing in 1U and 2U servers, short enough to leave no slack loop coiled behind the midplane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eHost connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSlimSAS 8x, SFF-8654, 74-pin plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eDevice connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e2 × MiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLane configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e8 host lanes → 2 × 4 device lanes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eDesigned for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSAS\/SATA drives and backplanes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eInterface speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSAS 4.0, up to 24 Gb\/s per lane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eSideband\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSFF-9402, SAS assignment (SGPIO \/ two-wire management preserved)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e80 cm \/ 31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eBroadcom MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e05-60003-00 (cable part 5067-6866), cross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eFactory part number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eRSL74-7657\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eConnector colour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eDark, both ends — identical to the NVMe variant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eB09S37RN91\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS\/SATA backplanes and drive cages with SFF-8643 ports.\u003c\/li\u003e\n\u003cli\u003eDouble-plumbed backplanes — one bay, two separate wirings. This cable feeds the SAS\/SATA half (SFF-8643 at the backplane); the U.2 half is cabled separately.\u003c\/li\u003e\n\u003cli\u003eTri-mode and SAS controllers with SlimSAS 8x ports, including Broadcom 9400 and 9600 series HBAs.\u003c\/li\u003e\n\u003cli\u003eSAS 3.0 (12 Gb\/s) and SAS 2.0 (6 Gb\/s) equipment — links negotiate down automatically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupermicro Purley NVMe backplanes\u003c\/strong\u003e with white SFF-8643 connectors — the white shells are on the \u003cem\u003ebackplane\u003c\/em\u003e; our cable is dark on both variants and carries no colour code. Those systems need the 05-60002-00 pinout, which we also stock.\u003c\/li\u003e\n\u003cli\u003eNVMe backplanes that follow the SFF-9402 specification — use the 05-60001-00 or 05-60004-00 variant instead, because the sideband assignment is different.\u003c\/li\u003e\n\u003cli\u003eDrives connected directly. The SFF-8643 end must meet a port on a backplane, cage or adapter.\u003c\/li\u003e\n\u003cli\u003eMCIO (SFF-TA-1016) hosts, or SlimSAS 4x (38-pin) headers — this cable is 8x on the host side.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS\/SATA drive cage on a new HBA.\u003c\/strong\u003e A 96xx or 94xx tri-mode controller driving an existing SFF-8643 SAS backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed-protocol chassis.\u003c\/strong\u003e The SAS\/SATA half of a double-plumbed cage, wired from one 8x host port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable management.\u003c\/strong\u003e One 8x run instead of two 4x runs, at a length that leaves no slack loop.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow is this different from Broadcom 05-60002-00?\u003c\/h3\u003e\n\u003cp\u003eBoth are 80 cm SlimSAS 8x to 2× MiniSAS HD cables with the same connectors, but they are wired for different backplanes. \u003cstrong\u003e05-60003-00\u003c\/strong\u003e (this cable) is the SAS\/SATA pinout. \u003cstrong\u003e05-60002-00\u003c\/strong\u003e is an NVMe-only cable for Supermicro Purley backplanes, which use a legacy NVMe pinout instead of the SFF-9402 arrangement. Plug the wrong one in and the drives simply do not appear — the connectors fit either way, and the two cables look identical.\u003c\/p\u003e\n\u003ch3\u003eHow do I tell your two 80 cm variants apart?\u003c\/h3\u003e\n\u003cp\u003eOnly by the label. Both are built on the same dark SFF-8654 and SFF-8643 connectors with the same jacket, so they look the same in the hand. This one is labelled \u003cstrong\u003eRSL74-7657\u003c\/strong\u003e; the NVMe variant is labelled \u003cstrong\u003eDL-A640\u003c\/strong\u003e. Both labels also carry the Broadcom cross-reference. If a label has come off, send us the order number before installing and we will confirm which variant your order shipped with.\u003c\/p\u003e\n\u003ch3\u003eDo you still sell the 100 cm version?\u003c\/h3\u003e\n\u003cp\u003eNo. The 100 cm assembly has been discontinued and this 80 cm cable replaces it — same connectors, same wiring, 20 cm shorter. If your chassis genuinely needs the extra reach, send us the server model and the routing distance and we will confirm what we can supply before you order.\u003c\/p\u003e\n\u003ch3\u003eCan I run NVMe drives on it?\u003c\/h3\u003e\n\u003cp\u003eNot reliably. Broadcom classifies this part as SAS\/SATA. NVMe over SFF-8643 depends on the PCIe sideband signals, and those are assigned differently on this cable than on the NVMe variants. If your backplane takes NVMe drives, tell us the backplane model and we will match the right pinout — usually 05-60002-00, 05-60001-00 or 05-60004-00.\u003c\/p\u003e\n\u003ch3\u003eWhat is SFF-9402 and why does it matter?\u003c\/h3\u003e\n\u003cp\u003eSFF-9402 is a superset of SFF-8448: it keeps the SAS backplane-management signals and adds the PCIe-defined sideband signals on the same connector. That is why one adapter can drive SAS, SATA and NVMe backplanes. What it does not do is make every SFF-8643 backplane interchangeable — many NVMe backplanes, Supermicro Purley among them, still use their own older pinout.\u003c\/p\u003e\n\u003ch3\u003eWhat does “double plumbed” mean?\u003c\/h3\u003e\n\u003cp\u003eIt means the backplane is wired twice for the same drive bays. One set of traces and connectors serves U.2 NVMe drives (PCIe), another serves SAS\/SATA drives. You populate a bay with one drive type and cable only the matching path — the drive does not auto-switch between them, and cabling both paths to the same host port is not a supported configuration. Broadcom lists this cable for the SAS\/SATA half, the half whose backplane-side connector is SFF-8643. The NVMe half is cabled separately, and on Supermicro Purley boards it needs the 05-60002-00 pinout instead.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between SlimSAS and MiniSAS HD?\u003c\/h3\u003e\n\u003cp\u003eSlimSAS is SFF-8654 — 74 pins for 8 lanes or 38 pins for 4 lanes, designed around SAS 4.0 (24 Gb\/s). MiniSAS HD is SFF-8643 — 36 pins, 4 lanes, the previous generation. Different connectors, they will not mate; this cable adapts between them.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SlimSAS 8x to 2 × MiniSAS HD cable, 80 cm — part number RSL74-7657 on the label (SKU B09S37RN91)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eBacked by a 24-month warranty. If a link trains at reduced width or a drive is not detected, contact us with your controller and backplane model numbers and we will confirm the correct pinout variant before you return anything. Quote the part number printed on the cable label — the two 80 cm variants look identical, so the label is the only reliable way to tell them apart.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/products\/slimsas-8x-to-2x-minisas-hd-80cm-05-60002-00\"\u003eSlimSAS to 2× MiniSAS HD — NVMe variant for Supermicro Purley (05-60002-00)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/slimsassff-8654\"\u003eAll SlimSAS (SFF-8654) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981353369896,"sku":"B09S37RN91","price":23.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/2222.jpg?v=1713252101"},{"product_id":"diliving-8-port-u-2-to-pci-express-x16-sff-8639-nvme-ssd-adapter-with-sff-8643-mini-sas-hd-36-pin-connector-and-plx8749-chipset-for-servers-lrnv9349-8i","title":"DiLinKer 8-Port U.2 NVMe to PCIe x16 Adapter, 8x SFF-8643 MiniSAS HD, PLX8749, LRNV9349-8I","description":"\u003cp\u003eEight \u003cstrong\u003eU.2 NVMe drives\u003c\/strong\u003e from one PCIe x16 slot, through eight \u003cstrong\u003eSFF-8643 (MiniSAS HD)\u003c\/strong\u003e ports and a Broadcom \u003cstrong\u003ePLX8749\u003c\/strong\u003e switch. This is the version to take if your cables and backplanes are already 8643 — the older, cheaper, far more common connector.\u003c\/p\u003e\n\u003ch2\u003eWhy 8643 rather than SlimSAS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEight x4 ports behind one switch.\u003c\/strong\u003e The PLX8749 is a 48-lane switch: sixteen lanes up to the host, four lanes out to each of eight ports. Every drive gets a genuine x4 link, and none of them depend on the motherboard understanding bifurcation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8643 is the connector your shelf already uses.\u003c\/strong\u003e SlimSAS is smaller and newer; SFF-8643 is what most existing U.2 backplanes, cables and drive cages in the field are built around. If you are expanding an older chassis rather than building new, this card avoids re-cabling the whole box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEight cables, one card.\u003c\/strong\u003e Each port takes a single SFF-8643 to U.2 (SFF-8639) cable. Cables are not included — budget for eight of them, or tell us the drive count and we will put the right set together.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBandwidth, stated plainly.\u003c\/strong\u003e Gen3 x16 to the host is about 15.75 GB\/s shared across eight drives. Eight Gen3 drives can saturate that between them, so this card is oversubscribed by design. It is the right trade for capacity and for workloads that do not read all eight at full speed at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhere the drive power comes from.\u003c\/strong\u003e The card supplies PCIe only. If your drives sit in a U.2 backplane, the cage powers them. If you are running bare 8643-to-U.2 cables instead, each of those cables carries its own SATA power tail and every drive needs a free PSU connector — eight of them. Count your PSU leads before you plan the build; this is the step people forget.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth brackets in the box.\u003c\/strong\u003e The full-height bracket is fitted; a low-profile one is included, because this card goes into 1U and 2U chassis as often as into a tower. 148 × 80 mm, so it clears a standard riser without overhanging the neighbouring slot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eHost interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003ePCIe 3.0 x16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e8 × SFF-8643, MiniSAS HD, 36-pin (x4 each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e8 × U.2 NVMe (SFF-8639)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSwitch chip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eBroadcom PLX PEX8749\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eLRNV9349-8I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eCard size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e148 × 80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eBrackets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eFull profile fitted, low profile included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB089SQ9HPX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA free PCIe x16 slot, no bifurcation needed\u003c\/li\u003e\n\u003cli\u003eU.2 NVMe drives through eight 8643-to-U.2 cables (sold separately)\u003c\/li\u003e\n\u003cli\u003eExisting SFF-8643 backplanes and drive cages\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS or SATA drives on the drive ports — PCIe only\u003c\/li\u003e\n\u003cli\u003ex8 slots: the uplink expects sixteen lanes\u003c\/li\u003e\n\u003cli\u003eSlimSAS 8654 backplanes without an adapter cable\u003c\/li\u003e\n\u003cli\u003eCables are not included in the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpanding an existing 8643 chassis.\u003c\/strong\u003e Eight more U.2 drives without changing a single cable in the shelf.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2U all-NVMe nodes.\u003c\/strong\u003e One slot, eight drives, two brackets so it fits either chassis height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArchive and capacity tiers.\u003c\/strong\u003e Dense NVMe capacity where aggregate throughput matters more than any single drive.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow many cables do I need?\u003c\/h3\u003e\n\u003cp\u003eEight: one SFF-8643 to U.2 (SFF-8639) cable per drive. We stock them and can bundle the right quantity.\u003c\/p\u003e\n\u003ch3\u003eDoes the board need bifurcation?\u003c\/h3\u003e\n\u003cp\u003eNo. The PLX8749 does the switching. A plain x16 slot is all that is required.\u003c\/p\u003e\n\u003ch3\u003eWill it work in an x8 slot?\u003c\/h3\u003e\n\u003cp\u003eNot reliably. The card is designed around a x16 uplink.\u003c\/p\u003e\n\u003ch3\u003eCan I use Gen4 drives?\u003c\/h3\u003e\n\u003cp\u003eThey will run at Gen3 speed through this switch. For Gen4 across eight drives you need a Gen4 switch card.\u003c\/p\u003e\n\u003ch3\u003eWhat is in the box?\u003c\/h3\u003e\n\u003cp\u003eThe card and a low-profile bracket. The full-height bracket is already fitted. No cables.\u003c\/p\u003e\n\u003ch3\u003eDo my drives need individual power?\u003c\/h3\u003e\n\u003cp\u003eThrough a U.2 backplane, no — the cage powers them. With bare 8643-to-U.2 cables, each cable carries the drive power tail.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 8-port U.2 NVMe to PCIe x16 switch card (LRNV9349-8I)\u003c\/li\u003e\n\u003cli\u003e1 × low-profile bracket (full profile fitted)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-4-port-u-2-to-pci-express-x8-sff-8639-nvme-ssd-adapter-with-sff-8643-mini-sas-hd-36-pin-connector-and-plx8724-chipset-for-servers-lrnv9324-4i\"\u003e4-port version on PCIe x8\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-pci-express-x16-to-4-slimsas-8x-expander-8-u-2-nvme-ssd-adapter-with-sff-8654-74-pin-connector-and-broadcom-plx8748-chipset-for-servers\"\u003eSlimSAS 8x version, 4 ports to 8 drives\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981358350632,"sku":"B089SQ9HPX","price":288.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/41GtrLCRXEL.jpg?v=1712028002"},{"product_id":"diliving-4-port-u-2-to-pci-express-x8-sff-8639-nvme-ssd-adapter-with-sff-8643-mini-sas-hd-36-pin-connector-and-plx8724-chipset-for-servers-lrnv9324-4i","title":"DiLinKer 4-Port U.2 NVMe to PCIe x8 Adapter, 4x SFF-8643 MiniSAS HD, PLX8724, LRNV9324-4I","description":"\u003cp\u003eFour \u003cstrong\u003eU.2 NVMe drives\u003c\/strong\u003e from a \u003cstrong\u003ePCIe x8\u003c\/strong\u003e slot, through four \u003cstrong\u003eSFF-8643\u003c\/strong\u003e ports and a Broadcom \u003cstrong\u003ePLX8724\u003c\/strong\u003e switch. Half the drives and half the slot width of the 8-port card, at a lower price — the right shape for a 1U chassis or a board whose x16 slot is already taken.\u003c\/p\u003e\n\u003ch2\u003eWhen four drives and eight lanes are the right fit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour genuine x4 links.\u003c\/strong\u003e The PLX8724 is a 24-lane switch: eight lanes up, four lanes out per port. Every drive gets a full x4 connection, and the host does not need bifurcation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHalf-height slot, half the price.\u003c\/strong\u003e An x8 slot is far easier to find free than an x16, especially in 1U servers and in boards where the x16 is holding a GPU. This card fits that gap without paying for eight ports you will not populate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8643 keeps your existing cabling.\u003c\/strong\u003e SFF-8643 is the connector most installed U.2 cages and backplanes already use. Four 8643-to-U.2 cables and you are done — cables are not in the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe bandwidth picture.\u003c\/strong\u003e Gen3 x8 to the host is about 7.9 GB\/s shared across four drives. That is enough for most real workloads and honest about the rest: four drives reading flat out at once will queue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot just two x4 cables in a slot.\u003c\/strong\u003e A board with two spare x4 slots and two x4-to-U.2 cables reaches four drives already. This card earns its place when the slots are not there — a 1U chassis with one riser, or a board whose second slot is blocked by a cooler — and when you want the four drives presented as one managed group behind one switch rather than four independent host links.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits where an x16 card will not.\u003c\/strong\u003e 148 × 80 mm with both brackets supplied, so it goes into a 1U riser as readily as into a tower. If your only free slot is a physical x16 wired for x8, this card links at x8 width and works — the 8-port version would not.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eHost interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003ePCIe 3.0 x8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × SFF-8643, MiniSAS HD, 36-pin (x4 each)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × U.2 NVMe (SFF-8639)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSwitch chip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eBroadcom PLX PEX8724\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eLRNV9324-4I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eCard size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e148 × 80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eBrackets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eFull profile fitted, low profile included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB089SQ84CH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA free PCIe x8 slot (x16 slots work too, at x8 width)\u003c\/li\u003e\n\u003cli\u003eU.2 NVMe drives through four 8643-to-U.2 cables, sold separately\u003c\/li\u003e\n\u003cli\u003e1U and 2U chassis with four U.2 bays\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS or SATA drives — PCIe only\u003c\/li\u003e\n\u003cli\u003eMore than four drives; there is no second tier of ports\u003c\/li\u003e\n\u003cli\u003eSlimSAS backplanes without an adapter cable\u003c\/li\u003e\n\u003cli\u003eCables are not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1U server with four NVMe bays.\u003c\/strong\u003e The card is short enough for a riser and does not need the x16 slot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkstation with the x16 taken.\u003c\/strong\u003e Put the storage switch on x8 and leave x16 for the GPU.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall all-NVMe nodes.\u003c\/strong\u003e Four drives, one switch, no bifurcation and no backplane re-cabling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow many cables do I need?\u003c\/h3\u003e\n\u003cp\u003eFour — one SFF-8643 to U.2 cable per drive. Not included.\u003c\/p\u003e\n\u003ch3\u003eWill it work in an x16 slot?\u003c\/h3\u003e\n\u003cp\u003eYes, it will link at x8 width. The slot just has to be open-ended or physically x16.\u003c\/p\u003e\n\u003ch3\u003eDoes the board need bifurcation?\u003c\/h3\u003e\n\u003cp\u003eNo. The switch handles it.\u003c\/p\u003e\n\u003ch3\u003eFour drives on eight lanes — is that enough?\u003c\/h3\u003e\n\u003cp\u003eIt is about 7.9 GB\/s shared. Fine for mixed and sequential work; four simultaneous full-speed reads will queue. If that is your workload, take the 8-port x16 card.\u003c\/p\u003e\n\u003ch3\u003eCan I mix drive sizes and models?\u003c\/h3\u003e\n\u003cp\u003eYes. Each port is independent, so drives of different capacities and vendors coexist without issue.\u003c\/p\u003e\n\u003ch3\u003eWhat is in the box?\u003c\/h3\u003e\n\u003cp\u003eThe card with the full-height bracket fitted, plus a low-profile bracket. No cables.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × 4-port U.2 NVMe to PCIe x8 switch card (LRNV9324-4I)\u003c\/li\u003e\n\u003cli\u003e1 × low-profile bracket (full profile fitted)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-8-port-u-2-to-pci-express-x16-sff-8639-nvme-ssd-adapter-with-sff-8643-mini-sas-hd-36-pin-connector-and-plx8749-chipset-for-servers-lrnv9349-8i\"\u003e8-port version on PCIe x16\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-pci-express-x16-to-4-slimsas-8x-expander-8-u-2-nvme-ssd-adapter-with-sff-8654-74-pin-connector-and-broadcom-plx8748-chipset-for-servers\"\u003eSlimSAS 8x version, 4 ports to 8 drives\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981359628584,"sku":"B089SQ84CH","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/41I7EbrYQ8L.jpg?v=1712028023"},{"product_id":"dilinker-75cm-hd-mini-sassff-8643-to-u-2-sff-8639-nvme-ssd-cable","title":"DiLinKer MiniSAS HD (SFF-8643) to U.2 NVMe Cable, SFF-8639 68-Pin, 75cm, with SATA Power","description":"\u003cp\u003eThe long version of our SFF-8643 to U.2 cable: same four PCIe lanes, same 68-pin drive connector, same SATA power tail, but \u003cstrong\u003e75 cm\u003c\/strong\u003e of run so the drive can live in a front cage while the port sits at the back of the board. It is the length most 4U and tower builds actually need, and the one people end up buying twice when they start with a 50 cm cable and find it does not reach.\u003c\/p\u003e\n\u003ch2\u003eWhy the extra 25 cm matters\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRouting distance, not straight-line distance.\u003c\/strong\u003e A drive in the front cage of a 4U chassis is often 60–70 cm of cable path from a rear PCIe slot once you go around the fan wall. 50 cm cables get pulled taut in that layout, and a taut cable loads the 68-pin connector — the usual cause of a drive that drops out under vibration but works on the bench.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe lanes only — the SAS trap.\u003c\/strong\u003e The 8643 shell is shared with SAS hardware, but this assembly carries PCIe. It works from a motherboard, riser or PCIe switch port that exposes NVMe on 8643; it does \u003cstrong\u003enot\u003c\/strong\u003e work from an LSI RAID card or HBA, whose 8643 ports drive SAS lanes. We have tested that combination and the drive never enumerates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowered from the PSU, not from the slot.\u003c\/strong\u003e U.2 SSDs need 3.3 V, 5 V and 12 V, and this cable brings all three in on a standard 15-pin SATA tail. Leave the tail off only when the drive is fed by a backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNothing to configure, nothing to flash.\u003c\/strong\u003e No switch, no re-driver, no firmware. Four lanes in, four lanes out, straight 1:1, which also means the drive behaves identically whether it is the only one in the box or one of twenty-four.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin (host side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eU.2 \/ SFF-8639, 68-pin (drive side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSATA 15-pin tail — 3.3 V \/ 5 V \/ 12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 (PCIe x4, straight 1:1 mapping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e75 cm end to end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003ePCIe 3.0 x4 native; PCIe 4.0 where host and routing allow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eNVMe over PCIe — no SAS, no SATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB087TMZ99N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4U rackmount and tower chassis where the drive cage is far from the slot\u003c\/li\u003e\n\u003cli\u003eSFF-8643 ports on boards, risers and PCIe switch cards that carry PCIe lanes\u003c\/li\u003e\n\u003cli\u003e2.5″ U.2 NVMe SSDs (SFF-8639) of any vendor\u003c\/li\u003e\n\u003cli\u003eBuilds where the 50 cm cable was just too tight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLSI \/ Broadcom RAID cards and HBAs\u003c\/strong\u003e — SAS lanes in a 8643 shell, tested incompatible with U.2 drives\u003c\/li\u003e\n\u003cli\u003eSAS and SATA drives — the 68-pin end is PCIe-wired\u003c\/li\u003e\n\u003cli\u003eU.2 backplanes, which need two 8643 plugs rather than an 8639 plug\u003c\/li\u003e\n\u003cli\u003eCable chains: do not daisy-chain two of these to make 150 cm — passive PCIe does not tolerate that\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4U storage build, front cage to rear slot.\u003c\/strong\u003e The drive sits in a hot-swap bay at the front, the 8643 port is on a rear add-in card, and 75 cm is what it takes to route above the fan wall with slack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTower workstation with a full-length GPU.\u003c\/strong\u003e Graphics cards in the top slot push cable routing sideways; the extra length keeps the run off the card and away from the CPU cooler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eU.2 drive on a bench test rig with the board at arm’s length.\u003c\/strong\u003e Enough length to move the drive between machines without unplugging anything.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between this and the 50 cm version?\u003c\/h3\u003e\n\u003cp\u003eLength only. Same connectors, same wiring, same SATA power tail, same 18-odd grams of cable. Choose by the routing distance in your chassis, not by the drive: if you are not sure, measure the path and add 10 cm of slack.\u003c\/p\u003e\n\u003ch3\u003eDoes it work with an LSI RAID card?\u003c\/h3\u003e\n\u003cp\u003eNo, and this is worth repeating because the connector fits either way. LSI RAID cards and HBAs put SAS lanes on their SFF-8643 ports; a U.2 SSD needs PCIe lanes. The drive will not appear. If you have a 94xx Tri-Mode controller, use our LSI94xx twin-U.2 cable, which is built for exactly that port.\u003c\/p\u003e\n\u003ch3\u003eCan I run PCIe 4.0 U.2 drives on it?\u003c\/h3\u003e\n\u003cp\u003eYes if the host port is Gen4. 75 cm is still within reach for Gen4 signalling, though a long passive run always has less margin than a short one — if the link trains at Gen3 on your board, that is the board and the length talking, not a fault. The drive works either way.\u003c\/p\u003e\n\u003ch3\u003eWhich end goes where?\u003c\/h3\u003e\n\u003cp\u003eThe 36-pin MiniSAS HD plug goes into the port on the board or card; the 68-pin U.2 plug goes into the drive. Both are keyed, so you cannot seat them backwards, but do check you are plugging into an 8643 port and not a neighbouring 8644 external port.\u003c\/p\u003e\n\u003ch3\u003eDo I need the SATA power tail?\u003c\/h3\u003e\n\u003cp\u003eFor a bare 2.5″ U.2 SSD, yes — it is the only power path. Connect it to any free SATA power lead. If the drive sits in a powered backplane, the tail stays unplugged.\u003c\/p\u003e\n\u003ch3\u003eWill longer cable slow the drive down?\u003c\/h3\u003e\n\u003cp\u003eNo. A passive cable either carries the link at the negotiated speed or fails to train; it does not quietly halve your throughput. Length affects signal margin at Gen4, which shows up as a generation step-down if anything, not as degraded performance.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SFF-8643 to U.2 (SFF-8639) NVMe cable, 75 cm, with SATA power tail (SKU B087TMZ99N)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dilinker-50cm-hd-mini-sassff-8643-to-u-2-sff-8639-nvme-ssd-cable\"\u003eSame cable in 50 cm, for compact chassis\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/minisas-hd-8x-to-2x-u-2-nvme-sff-8643-sff-8639-75cm\"\u003eLSI 94xx Tri-Mode controller? You need the dedicated twin-U.2 cable\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/u-2-nvmesff-8639\"\u003eAll U.2 \/ NVMe cables and adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981361365288,"sku":"B087TMZ99N","price":18.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/5-d.jpg?v=1712564522"},{"product_id":"minisas-hd-sff-8643-to-4x-sata-cable-1m-gpio","title":"DiLinKer MiniSAS HD (SFF-8643) to 4x SATA Cable with GPIO Signal, Forward Breakout, 100cm","description":"\u003cp\u003eA forward breakout: one \u003cstrong\u003eSFF-8643\u003c\/strong\u003e port on your RAID card or motherboard becomes four 7-pin \u003cstrong\u003eSATA\u003c\/strong\u003e connections, one metre away. This is the version that also brings the connector’s sideband pins out as a separate \u003cstrong\u003eGPIO lead\u003c\/strong\u003e — four SATA links plus one small flying lead, in the same shell.\u003c\/p\u003e\n\u003ch2\u003eWhat the GPIO lead is for\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForward means host to drives.\u003c\/strong\u003e The SFF-8643 end goes to the controller, the four 7-pin ends go to the drives. If your 8643 is on a backplane instead, you need the reverse breakout, not this cable — the two are wired opposite ways round and cannot be swapped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe GPIO lead carries the sideband pins.\u003c\/strong\u003e A 36-pin SFF-8643 shell has room for more than four lanes: it also carries the sideband pins that controllers use for drive-present and activity signalling. On this assembly those pins are terminated in a short flying lead, so a chassis harness or a controller that expects them has somewhere to land.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou do not have to connect it.\u003c\/strong\u003e The four SATA links work whether or not the GPIO lead is plugged in. If you are going straight from a card to four bare drives with nothing in between, leave it disconnected — and if that is your build, the standard 100 cm version is a few dollars cheaper.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne metre, four independent links.\u003c\/strong\u003e Each drive gets its own 7-pin link: no port multiplier, no shared clock, no expander. Four drives appear as four separate devices at the controller, which is what you want for a boot mirror, a small RAID set or four spindles in a tower.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin — host side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × SATA 7-pin — drive side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSideband\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eGPIO flying lead (controller sideband pins broken out)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 independent SAS\/SATA links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e100 cm end to end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e6 Gb\/s SATA per link; connector rated to 12 Gb\/s SAS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eEAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e6970958103389\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB0829QK61T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSFF-8643 host ports on RAID cards, HBAs and motherboards\u003c\/li\u003e\n\u003cli\u003eFour SATA hard drives or SSDs, any capacity, mixed models are fine\u003c\/li\u003e\n\u003cli\u003eControllers or chassis harnesses that expect sideband\/GPIO wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSFF-8643 \u003cstrong\u003ebackplane\u003c\/strong\u003e ports — those need the reverse breakout\u003c\/li\u003e\n\u003cli\u003eSAS drives: a SAS target needs a different connector, not 7-pin SATA\u003c\/li\u003e\n\u003cli\u003eMore than four drives — there is no expander inside this cable\u003c\/li\u003e\n\u003cli\u003ePort multipliers or SATA splitters — this is four direct links, not a hub\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-bay tower or 4-in-3 cage.\u003c\/strong\u003e One 8643 port feeds all four bays, which is the cheapest way to put four spindles on a single controller port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoot mirror on a RAID card.\u003c\/strong\u003e Two of the four links to the system drives, two spare for a data pair, all from one port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBench and test rigs.\u003c\/strong\u003e When a drive has to sit outside the case while a controller stays in the slot, the extra length is the reason this version exists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDo I have to connect the GPIO lead?\u003c\/h3\u003e\n\u003cp\u003eNo. The four SATA links carry data on their own. The lead only matters if your controller or chassis harness is wired to use the sideband pins.\u003c\/p\u003e\n\u003ch3\u003eWhere does the GPIO lead plug in?\u003c\/h3\u003e\n\u003cp\u003eThat depends entirely on the controller and chassis, which is why we ship it as bare flying leads rather than a fixed connector. Send us the controller model and a photo of the connector you are trying to mate with, and we will tell you whether it is worth connecting.\u003c\/p\u003e\n\u003ch3\u003eHow is this different from your 75cm breakout?\u003c\/h3\u003e\n\u003cp\u003eTwo things: length, and this one has the GPIO lead. The 75 cm version is the same forward breakout without sideband wiring.\u003c\/p\u003e\n\u003ch3\u003eWill it work off a backplane?\u003c\/h3\u003e\n\u003cp\u003eNo. A backplane presents an SFF-8643 \u003cem\u003esocket\u003c\/em\u003e that expects to be fed by the host, so you need the reverse breakout — four SATA ports on the controller fanning into one 8643. We stock that as a separate SKU.\u003c\/p\u003e\n\u003ch3\u003eCan I run SAS drives on it?\u003c\/h3\u003e\n\u003cp\u003eNo. The drive ends are 7-pin SATA. SAS drives need a SAS target connector, and mixing the two will not work no matter which way you plug it in.\u003c\/p\u003e\n\u003ch3\u003eIs it really only 6 Gb\/s?\u003c\/h3\u003e\n\u003cp\u003ePer SATA link, yes — that is the SATA interface, not a limit of the cable. The connector itself is rated well above that, so the cable will not be what holds your array back.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × MiniSAS HD (SFF-8643) to 4 × SATA breakout cable, 100 cm, with GPIO lead\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-3-3ft-1m\"\u003eSame cable without the GPIO lead (100cm, lower price)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-2-46ft-75cm\"\u003eForward breakout, 75cm — the short version\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-minisas-hd-backplane-to-4-sata-host-controller-4-sata-to-sff-8643-cable-sff-8643-for-backplane-4-sata-for-controller-connect-2-46ft-75cm\"\u003eReverse breakout: 4 × SATA to one SFF-8643\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981363822888,"sku":"B0829QK61T","price":13.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/sadf.jpg?v=1713336139"},{"product_id":"diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-3-3ft-1m","title":"DiLinKer MiniSAS HD (SFF-8643) to 4x SATA Cable, Forward Breakout, 100cm","description":"\u003cp\u003eOne \u003cstrong\u003eSFF-8643\u003c\/strong\u003e port on your RAID card or motherboard, four 7-pin \u003cstrong\u003eSATA\u003c\/strong\u003e connections one metre away. This is the plain forward breakout: no sideband wiring, no extra lead, just four clean links between the controller and four drives.\u003c\/p\u003e\n\u003ch2\u003eWhy this is the version most builds need\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForward, not reverse.\u003c\/strong\u003e SFF-8643 sits on the host side here — the controller or the board — and the four 7-pin ends go to the drives. A backplane is the opposite case: its 8643 is a socket that has to be fed, which takes the reverse breakout. Getting this wrong is the single most common reason a breakout cable appears dead on arrival.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo sideband, so nothing to leave dangling.\u003c\/strong\u003e Plenty of cables ship with a little extra flying lead for the connector’s sideband pins. In a desktop build that lead either gets cut off or rattles around the case. This version does not have one, which also makes it the cheaper of the two 100 cm breakouts we stock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour links that stay four links.\u003c\/strong\u003e There is no expander and no port multiplier inside. Each drive keeps its own 6 Gb\/s link, so four drives show up as four devices and can fail, be replaced or be left empty independently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne metre of reach.\u003c\/strong\u003e Enough to cross a full-size tower, reach a 4-in-3 cage at the front of the case, or put drives on a bench next to an open chassis. If your routing is short, the 75 cm version does the same job with less cable to tuck away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin — host side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 × SATA 7-pin — drive side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 independent SAS\/SATA links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e100 cm (3.3 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e6 Gb\/s SATA per link; connector rated to 12 Gb\/s SAS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eWiring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eForward breakout, straight lane order\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB0827J4Z78\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSFF-8643 host ports on RAID cards, HBAs and motherboards\u003c\/li\u003e\n\u003cli\u003eFour SATA hard drives or SSDs, including mixed capacities and models\u003c\/li\u003e\n\u003cli\u003e4-bay cages and 4-in-3 drive modules fed directly from the controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSFF-8643 \u003cstrong\u003ebackplane\u003c\/strong\u003e ports — use the reverse breakout instead\u003c\/li\u003e\n\u003cli\u003eSAS drives — the drive ends are 7-pin SATA\u003c\/li\u003e\n\u003cli\u003eMore than four drives; there is no expander in the cable\u003c\/li\u003e\n\u003cli\u003ePCIe or NVMe: this is a SATA breakout, not a U.2 cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour SATA spindles on one port.\u003c\/strong\u003e The classic 4-bay NAS or workstation build: one 8643 port, four drives, no backplane needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoot plus data split.\u003c\/strong\u003e Two links to mirrored system drives, two to a data pair, all keyed off a single controller port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing a dead backplane in a hurry.\u003c\/strong\u003e When the cage is fine but its wiring is not, four direct links keep the machine running while you wait for parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I know whether I need this or the reverse breakout?\u003c\/h3\u003e\n\u003cp\u003eLook at where the SFF-8643 lives. On the controller or motherboard, it is a port and you want this forward cable. On a backplane, it is a socket waiting to be fed, and you want the reverse one.\u003c\/p\u003e\n\u003ch3\u003eDo I need the GPIO version?\u003c\/h3\u003e\n\u003cp\u003eOnly if your controller or chassis harness is wired to use the sideband pins. For four bare drives, this version is cheaper and has nothing left over to secure.\u003c\/p\u003e\n\u003ch3\u003eCan I leave some of the four links unconnected?\u003c\/h3\u003e\n\u003cp\u003eYes. Unused 7-pin ends can simply hang free; the connected drives are unaffected.\u003c\/p\u003e\n\u003ch3\u003eCan I run SAS drives on it?\u003c\/h3\u003e\n\u003cp\u003eNo. The drive ends are 7-pin SATA only. SAS drives need a SAS target connector.\u003c\/p\u003e\n\u003ch3\u003eWhy does my drive not show up at all?\u003c\/h3\u003e\n\u003cp\u003eCheck three things in order: the 8643 is on a host port and not a backplane; the controller port is enabled in firmware; and the drive is SATA, not SAS. If all three are fine, send us the controller model and we will look at the port mapping with you.\u003c\/p\u003e\n\u003ch3\u003eIs 100cm too long for signal integrity?\u003c\/h3\u003e\n\u003cp\u003eFor 6 Gb\/s SATA, one metre is well inside what passive copper handles. If you are chasing a marginal link, the usual causes are a bent latch or a worn connector, not the length.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × MiniSAS HD (SFF-8643) to 4 × SATA breakout cable, 100 cm\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/minisas-hd-sff-8643-to-4x-sata-cable-1m-gpio\"\u003eSame cable with a GPIO sideband lead (100cm)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-2-46ft-75cm\"\u003eForward breakout, 75cm — the short version\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981364478248,"sku":"B0827J4Z78","price":14.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/2-1_37967c3c-7716-4cb5-9106-864ea15fbb60.jpg?v=1712822305"},{"product_id":"diliving-slimsas-4x-to-minisas-hd-4x-sff-8654-38pin-to-sff-8643-36pin-cable-80cm","title":"DiLinKer SlimSAS 4X to MiniSAS HD 4X Cable, SFF-8654 38-Pin to SFF-8643 36-Pin, 80cm","description":"\u003cp\u003eA four-lane adapter cable that bridges the two generations of internal SAS connector: \u003cstrong\u003eSlimSAS 4i\u003c\/strong\u003e (SFF-8654, 38-pin) on one end, \u003cstrong\u003eMiniSAS HD 4i\u003c\/strong\u003e (SFF-8643, 36-pin) on the other, 80 cm apart. Nothing is split, switched or re-timed. Four lanes in, the same four lanes out, which is exactly what you need when a SlimSAS-era controller or backplane has to reach an SFF-8643-era device — or the other way round.\u003c\/p\u003e\n\u003ch2\u003eWhy this cable exists\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo connector generations, one link.\u003c\/strong\u003e SlimSAS shrank the 4i connector down to a 38-pin shell so that more ports fit on a board edge, but a great deal of installed hardware still terminates in SFF-8643. This assembly is the plain translation between the two — no change in lane count, no change in order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated 24 Gb\/s SAS and 8 GT\/s PCIe per lane.\u003c\/strong\u003e Both figures are per-lane signalling rates for this assembly. A link always negotiates down to the slowest component in the chain, so an older HBA or a Gen3 host costs you speed, never compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight 1:1 lane mapping.\u003c\/strong\u003e Lane 0 to lane 0, lane 3 to lane 3. Because nothing is cross-wired you can also run it backwards, from an SFF-8643 host port into a SlimSAS 4i backplane, provided both ends are 4i.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim shell where space is tight.\u003c\/strong\u003e The 38-pin end is noticeably narrower than a 36-pin MiniSAS HD plug, which is often the only reason this cable is in the build at all: the card or backplane simply has no room for an 8643 shell.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSlimSAS 4i, SFF-8654, 38-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 (straight, 1:1 mapping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e80 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e24 Gb\/s per lane SAS · 8 GT\/s per lane PCIe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSFF-8654 (SlimSAS) · SFF-8643 (MiniSAS HD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB081CJGC4F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSlimSAS 4i (38-pin) ports on a controller, motherboard or backplane\u003c\/li\u003e\n\u003cli\u003eMiniSAS HD 4i (36-pin) backplanes, drive cages, HBAs and RAID cards\u003c\/li\u003e\n\u003cli\u003eSAS and SATA drives, in either direction of the cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8-lane SlimSAS (74-pin) ports — those need an x8 fan-out cable, not this one\u003c\/li\u003e\n\u003cli\u003eExternal MiniSAS HD (SFF-8644): different shell and latch, a different cable entirely\u003c\/li\u003e\n\u003cli\u003eU.2 backplanes whose pinout we have not confirmed for this assembly — ask us with the backplane model before you order for NVMe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebuilding an older cage on a newer platform.\u003c\/strong\u003e A Gen4 SlimSAS controller feeding a chassis whose drive cage still uses SFF-8643 ports. The cable does the connector translation; the lanes stay whole.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixed-vintage labs and test benches.\u003c\/strong\u003e One cable, two generations of hardware on the bench, without buying a bridge card for a job that only needs wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacing a damaged OEM cable.\u003c\/strong\u003e Same connector pair, same lane order, same 80 cm reach — a drop-in replacement when the original part is unobtainable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the difference between SFF-8654 38-pin and SFF-8654 74-pin?\u003c\/h3\u003e\n\u003cp\u003eBoth are SlimSAS, but they carry different lane counts. The 38-pin shell is \u003cstrong\u003e4i\u003c\/strong\u003e (four lanes); the 74-pin shell is \u003cstrong\u003e8i\u003c\/strong\u003e (eight lanes). This cable uses the 38-pin 4i shell, so it mates with a 4-lane SlimSAS port only — a 74-pin port needs an x8 cable.\u003c\/p\u003e\n\u003ch3\u003eIs anything split inside the cable?\u003c\/h3\u003e\n\u003cp\u003eNo. It is a passive four-lane assembly with a straight 1:1 mapping. There is no switch, no retimer and nothing to configure: the host sees the same four lanes it would see with a native 8643 cable.\u003c\/p\u003e\n\u003ch3\u003eCan I use it in either direction?\u003c\/h3\u003e\n\u003cp\u003eYes, as long as both ends are 4i. The assembly is passive, so which side is host and which is target is decided by your hardware, not by the cable. What it cannot do is change lane count.\u003c\/p\u003e\n\u003ch3\u003eWill it work with NVMe \/ U.2 drives?\u003c\/h3\u003e\n\u003cp\u003eDo not assume it will. This assembly is specified at 24 Gb\/s SAS and 8 GT\/s PCIe per lane, and we have not confirmed an SFF-9402 pinout for it. If you are wiring U.2 drives, send us the backplane model and we will tell you which of our cables is specified for that pinout rather than guess.\u003c\/p\u003e\n\u003ch3\u003eHow is it different from the 100 cm version?\u003c\/h3\u003e\n\u003cp\u003eOnly the length — same connectors, same lane mapping. The 100 cm assembly is useful when the controller sits at the front of a deep chassis; in a standard 2U the 80 cm version leaves less slack to manage.\u003c\/p\u003e\n\u003ch3\u003eMy backplane has two 4i ports — can I run two of these?\u003c\/h3\u003e\n\u003cp\u003eYes. Each 4i port needs its own cable back to its own 4i host port. Two cables give you eight lanes in total, but they occupy two separate host connectors — a single 8i port cannot be split by plugging two cables into it.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SlimSAS 4i to MiniSAS HD 4i cable, 80 cm (SKU B081CJGC4F)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-slimsas-4x-to-minisas-hd-sff-8654-38pin-to-sff-8643-36pin-cable-100cm\"\u003eSame cable in 100 cm — SlimSAS 4X to MiniSAS HD\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-slimsas-4x-to-u-2-nvme-adapter-sff-8654-38p-to-sff-8639-68p-cable-with-power-75cm\"\u003eSlimSAS 4X to U.2 NVMe adapter, SFF-8654 to SFF-8639\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-slimsas-x8-to-8-sata-sff-8654-74p-to-8-sata-7p-slimsas-host-raid-to-sata-target-hd-85cm-cable\"\u003eSlimSAS 8X to 8x SATA, SFF-8654 74-pin to SATA\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981365494056,"sku":"B081CJGC4F","price":18.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/sddfd.jpg?v=1713163753"},{"product_id":"dilinker-sff-8643-to-sff-8644-hd-sas-to-external-hd-sas-mother-port-cable-60cm","title":"DiLinKer SFF-8643 to SFF-8644 Cable, Internal MiniSAS HD to External MiniSAS HD, 60cm, 12 Gb\/s SAS","description":"\u003cp\u003eThe cable that gets four SAS lanes out of the box: \u003cstrong\u003eSFF-8643\u003c\/strong\u003e (internal 36-pin) on one end, \u003cstrong\u003eSFF-8644\u003c\/strong\u003e (external 36-pin, with the pull-latch shell) on the other, 60 cm apart. It is what sits between a host HBA and an external JBOD, disk shelf or tape library — and it carries SAS, so this is not the cable for a U.2 NVMe drive no matter how similar the two connectors look.\u003c\/p\u003e\n\u003ch2\u003eWhat separates 8643 from 8644\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame four lanes, different shell.\u003c\/strong\u003e SFF-8644 is the external variant of MiniSAS HD: same 36 pins and same 12 Gb\/s SAS signalling, but with a shielded, latching shell designed to be plugged and unplugged from outside a chassis. The 8643 end is the internal one that goes to the HBA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwelve gigabits per lane, four lanes.\u003c\/strong\u003e That is 48 Gb\/s of SAS bandwidth across the cable, and it negotiates down to 6 Gb\/s or 3 Gb\/s with older expanders and shelves. It is a SAS link end to end — no PCIe, no NVMe, no U.2 drive support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for repeated mating.\u003c\/strong\u003e The external end has the pull-tab release and the metal shell that the spec requires, so it survives being cycled every time someone swaps a shelf. An internal 8643 plug pushed into service as an external connector is how ports get damaged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShielding matters outdoors.\u003c\/strong\u003e The 8644 shell is shielded to keep 12 Gb\/s signalling clean across the cable and through the bulkhead. That is why this is not simply a longer internal cable with a different connector on the end.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSFF-8643, internal MiniSAS HD, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSFF-8644, external MiniSAS HD, 36-pin, latching shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e12 Gb\/s SAS per lane (SAS 3.0); backward compatible with 6 and 3 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e60 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSAS \/ SATA tunnelling — not PCIe, not NVMe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB07Q3TFYZT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHost HBAs and RAID cards with an internal SFF-8643 port\u003c\/li\u003e\n\u003cli\u003eExternal JBODs, disk shelves, tape drives and DAS enclosures with an SFF-8644 port\u003c\/li\u003e\n\u003cli\u003eSAS and SATA drives behind an expander in the external enclosure\u003c\/li\u003e\n\u003cli\u003e12 Gb\/s, 6 Gb\/s and 3 Gb\/s SAS links\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eU.2 NVMe drives and NVMe backplanes — this is a SAS cable; the connectors look alike but nothing will enumerate\u003c\/li\u003e\n\u003cli\u003eConsumer SATA controllers — they have no 8643 port to plug into\u003c\/li\u003e\n\u003cli\u003ePort-to-port external runs longer than 60 cm; use an external 8644-to-8644 cable for that\u003c\/li\u003e\n\u003cli\u003eConnecting SAS drives directly: this is a host-to-enclosure cable, not a drive breakout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHBA to a 12-bay external shelf.\u003c\/strong\u003e The 8643 end goes on the card inside the host, the 8644 end onto the shelf, and the shelf’s expander handles the drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkstation with an external SAS tape or LTO drive.\u003c\/strong\u003e A single cable from an internal port to the external unit, no PCIe bracket adapter needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab setup moving a JBOD between hosts.\u003c\/strong\u003e The latching external end is made for that kind of handling; unplug at the shelf, leave the card side alone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eCan I use this for a U.2 NVMe drive?\u003c\/h3\u003e\n\u003cp\u003eNo. SFF-8644 is physically similar to SFF-8643 and both are 36-pin, but this cable carries SAS signalling. An NVMe drive will not enumerate, and no amount of adapter fiddling changes that. For U.2 you need an SFF-8643-to-SFF-8639 cable or a PCIe-to-U.2 cable, both of which we stock.\u003c\/p\u003e\n\u003ch3\u003eIs 8644 the same as 8643 with a bigger shell?\u003c\/h3\u003e\n\u003cp\u003eElectrically it is the same four-lane SAS interface; mechanically it is a different, shielded, latching connector intended for external use. That is exactly why this cable exists: to cross from the internal port to the external one without a bulkhead adapter.\u003c\/p\u003e\n\u003ch3\u003eWhat speed will I actually get?\u003c\/h3\u003e\n\u003cp\u003eUp to 12 Gb\/s per lane, so 48 Gb\/s across four lanes, but only if the HBA, the cable, the expander and the drives all support it. A 6 Gb\/s expander in the shelf brings the whole link down to 6 Gb\/s — normal, and not a cable fault.\u003c\/p\u003e\n\u003ch3\u003eHow long is the run, exactly?\u003c\/h3\u003e\n\u003cp\u003e60 cm connector to connector. That is sized for a host with the card near the bulkhead; if the card is at the far end of a deep chassis, measure before ordering, because external SAS cables are not meant to be stretched.\u003c\/p\u003e\n\u003ch3\u003eCan I plug two of these together to make 120 cm?\u003c\/h3\u003e\n\u003cp\u003eNot usefully — you would need a 8644-to-8644 coupler, and every extra connector costs signal margin at 12 Gb\/s. Buy an external 8644-to-8644 cable in the length you need instead.\u003c\/p\u003e\n\u003ch3\u003eWhich end goes to the host?\u003c\/h3\u003e\n\u003cp\u003eSFF-8643 (the plain internal plug) to the card or board, SFF-8644 (the one with the pull latch and metal shell) to the enclosure. The latch end is always the one you reach from outside.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SFF-8643 to SFF-8644 MiniSAS HD cable, 60 cm, 12 Gb\/s SAS (SKU B07Q3TFYZT)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-internal-hd-mini-sas-sff-8643-host-4x-sata-target-cable-sff-8643-to-4x-sata-cable-sff-8643-for-controller-4-sata-connect-to-hard-drive-2-46ft-75cm\"\u003eNeed internal SAS fan-out instead? 8643 host to 4x SATA\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/slimsas-8x-to-2x-minisas-hd-80cm-05-60003-00\"\u003eSlimSAS x8 to 2x MiniSAS HD, for newer controllers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981368738088,"sku":"B07Q3TFYZT","price":25.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/41QPZCyvNzL.jpg?v=1712028297"},{"product_id":"minisas-hd-8x-to-2x-u-2-nvme-sff-8643-sff-8639-75cm","title":"DiLinKer LSI 94xx Tri-Mode Cable, 2x U.2 NVMe (SFF-8639) from One SFF-8643 Port, 75cm, with Power","description":"\u003cp\u003eA two-headed U.2 cable for \u003cstrong\u003eLSI 94xx Tri-Mode\u003c\/strong\u003e controllers. One 36-pin SFF-8643 port on the card fans out to two \u003cstrong\u003e68-pin SFF-8639\u003c\/strong\u003e drive connectors, 75 cm each, with power tails. Both heads carry NVMe over PCIe, which is only possible because the 94xx family can put PCIe lanes on its 8643 ports — on any other LSI card the same port speaks SAS and this cable does nothing.\u003c\/p\u003e\n\u003ch2\u003eWhy this cable is controller-specific\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnly Tri-Mode controllers put PCIe on an 8643 port.\u003c\/strong\u003e Across the LSI range the SFF-8643 shell is used for SAS lanes. The 94xx generation is the one that can drive NVMe over those same pins, which is why this assembly is sold as an LSI94xx part and not as a generic U.2 cable. On a SAS-only HBA the drives simply will not appear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo drives from one port, with the lanes split in the card.\u003c\/strong\u003e The split happens inside the controller, not in the cable, which is why nothing here needs power, firmware or a switch chip. Each head still presents a full x4 link to its drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower tails on both heads.\u003c\/strong\u003e Each 2.5″ U.2 SSD needs 3.3 V, 5 V and 12 V, and each head carries its own 4-pin power lead for exactly that. Drives in a powered backplane can leave them unplugged; bare drives cannot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75 cm per head, correct on this listing.\u003c\/strong\u003e The old description on this page said 50 cm in one line and 75 cm in another. The part we ship is 75 cm end to end on each head — treat the 50 cm line as a typo, and measure your routing against 75.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eHost connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin (one)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eDrive connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eU.2 \/ SFF-8639, 68-pin (two)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4-pin power tail on each drive head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003ePCIe x4 to each drive (lane split handled by the controller)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e75 cm per head, end to end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eController support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eLSI \/ Broadcom 94xx Tri-Mode series only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eNVMe over PCIe — not SAS, not SATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eCross-reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eBroadcom 05-50065-00 \/ 05-50064-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB07JM1H18S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLSI \/ Broadcom 94xx Tri-Mode controllers with SFF-8643 ports (check your card’s port configuration before ordering)\u003c\/li\u003e\n\u003cli\u003e2.5″ U.2 NVMe SSDs (SFF-8639), any vendor\u003c\/li\u003e\n\u003cli\u003eChassis with room for two drives within 75 cm of the card\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAny SAS-only HBA or RAID card, including earlier LSI generations — their 8643 ports carry SAS lanes and the drives will not enumerate\u003c\/li\u003e\n\u003cli\u003eSAS or SATA drives — both heads are PCIe-wired\u003c\/li\u003e\n\u003cli\u003eMotherboard 8643 ports — those are single-link; use our plain SFF-8643 to U.2 cable instead\u003c\/li\u003e\n\u003cli\u003eSplitting one head to two drives: each head is one drive, full stop\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-drive NVMe mirror on a 94xx card.\u003c\/strong\u003e One cable, two SSDs, no backplane and no expander — the cheapest way to get redundant NVMe into a workstation-class build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest bench with a Tri-Mode card and loose drives.\u003c\/strong\u003e Both drives sit on the bench next to the card instead of in a cage, so you can swap them without pulling the chassis apart.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall server where a U.2 backplane will not fit.\u003c\/strong\u003e Two cabled drives in a 2U chassis take less depth than a backplane plus its cabling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eIs this the same as a normal SFF-8643 to U.2 cable?\u003c\/h3\u003e\n\u003cp\u003eNo. A normal one carries a single drive from a single-link port. This one carries two drives from one port, and only works because the 94xx controller splits the lanes internally. Buy this for a 94xx card; buy the plain cable for a motherboard or riser port.\u003c\/p\u003e\n\u003ch3\u003eWhich controllers is it actually for?\u003c\/h3\u003e\n\u003cp\u003eThe LSI \/ Broadcom 94xx Tri-Mode family, where the SFF-8643 ports can be configured for NVMe. Because port configuration is a card-level setting, send us your exact model if you are not certain — we would rather confirm than have you return a cable.\u003c\/p\u003e\n\u003ch3\u003eThe listing says 50 cm in one place and 75 cm in another.\u003c\/h3\u003e\n\u003cp\u003eThe part is 75 cm per head. The 50 cm line came from an earlier description and has been removed; if you need a measured length before ordering, ask and we will put a tape on one.\u003c\/p\u003e\n\u003ch3\u003eDo both power tails have to be connected?\u003c\/h3\u003e\n\u003cp\u003eConnect the tail for every drive you actually fit. Each 4-pin tail feeds one 2.5″ U.2 SSD with 3.3 V, 5 V and 12 V; a drive with no power tail will not spin up, and there is nothing on the cable that substitutes for it.\u003c\/p\u003e\n\u003ch3\u003eCan I use it on a plain SAS HBA to get two drives?\u003c\/h3\u003e\n\u003cp\u003eNo, and this is the mistake that costs people a return. A SAS HBA puts SAS lanes on its 8643 ports, so NVMe drives never enumerate regardless of cabling. For SAS or SATA drives on an HBA you want a 4x SATA breakout cable, not this.\u003c\/p\u003e\n\u003ch3\u003eHow fast does each drive run?\u003c\/h3\u003e\n\u003cp\u003eWhatever the card gives it: each head presents four PCIe lanes to its drive. We do not quote a single GB\/s figure on this page because the number depends entirely on the controller generation and the drive, and a made-up headline number helps nobody.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × LSI 94xx twin U.2 NVMe cable, SFF-8643 to 2× SFF-8639, 75 cm per head, with 4-pin power tails (SKU B07JM1H18S)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dilinker-75cm-hd-mini-sassff-8643-to-u-2-sff-8639-nvme-ssd-cable\"\u003eSingle-drive SFF-8643 to U.2 cable, 75 cm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/diliving-pcie-4-0-x4-to-u-2-sff-8639-nvme-ssd-70cm-cable-no-additional-power-plug-required\"\u003ePCIe 4.0 x4 to U.2 cable, no extra power needed\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/u-2-nvmesff-8639\"\u003eAll U.2 \/ NVMe cables and adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981369917736,"sku":"B07JM1H18S","price":35.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/11-1.jpg?v=1712632966"},{"product_id":"diliving-minisas-hd-to-minisas-hd-sff-8643-to-sff-8643-cable-75cm","title":"DiLinKer MiniSAS HD to MiniSAS HD, SFF-8643 to SFF-8643 Cable 75cm","description":"\u003cp\u003eA straight, four-lane link between two MiniSAS HD ports. The DiLinKer 75 cm cable connects SFF-8643 (36-pin) to SFF-8643 and is specified for SAS 3.0 at 12 Gb\/s per lane, with full backward compatibility to SAS 2.0 at 6 Gb\/s. It remains the workhorse cable for the enormous installed base of 12G HBAs, RAID controllers and backplanes.\u003c\/p\u003e\n\u003ch2\u003eWhy this cable\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSAS 3.0, 12 Gb\/s per lane.\u003c\/strong\u003e Four lanes of 12G SAS — the standard for 9300 and 9400-series HBAs and 12G backplanes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight 4x to 4x.\u003c\/strong\u003e All four lanes pass 1:1 from host to device, the correct wiring for a single 4-lane port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-density connector.\u003c\/strong\u003e SFF-8643 packs a 4-lane link into a 36-pin housing, which is why dense controllers use it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75 cm for tight layouts.\u003c\/strong\u003e Short enough for 1U chassis, long enough for most 2U routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePassive and inexpensive.\u003c\/strong\u003e No power, no firmware — the simplest way to complete a 12G link.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eMiniSAS HD, SFF-8643, 36-pin plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eMiniSAS HD, SFF-8643, 36-pin plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e4 (x4), straight 1:1 mapping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eInterface speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSAS 3.0, 12 Gb\/s per lane; backward compatible with 6 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSAS or PCIe, as determined by the host and device\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e75 cm \/ 29.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eRHS36-0753\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eB07JLS9TXL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS 3.0 HBAs and RAID controllers with SFF-8643 ports (for example 9300 and 9400 series 4i\/8i cards).\u003c\/li\u003e\n\u003cli\u003e12G SAS and SATA backplanes with SFF-8643 inputs.\u003c\/li\u003e\n\u003cli\u003ePCIe Gen3 NVMe designs where both the host port and the device side speak PCIe over SFF-8643.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSAS 4.0 (24 Gb\/s) links. For 24G, move to a SlimSAS (SFF-8654) cable.\u003c\/li\u003e\n\u003cli\u003eSlimSAS or MCIO ports — different connector standards.\u003c\/li\u003e\n\u003cli\u003eDrives connected directly. The SFF-8643 end must meet a backplane, cage or adapter port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic 12G storage build.\u003c\/strong\u003e HBA or RAID card to a 12G SAS\/SATA backplane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController swap.\u003c\/strong\u003e Replace a failed 12G controller without touching the backplane cabling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCIe Gen3 NVMe on older cages.\u003c\/strong\u003e Feed an SFF-8643 NVMe backplane from a Gen3 x4 host port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eIs this cable usable for NVMe?\u003c\/h3\u003e\n\u003cp\u003eYes — the SFF-8643 connector carries PCIe as well as SAS. The protocol is decided by the host port and the device: a PCIe host with an NVMe backplane works; an SAS-only controller with SAS drives works; mixing the two does not.\u003c\/p\u003e\n\u003ch3\u003eWill it run at 24 Gb\/s like SlimSAS?\u003c\/h3\u003e\n\u003cp\u003eNo. SFF-8643 is a 12 Gb\/s generation interface. For SAS 4.0 links use a SlimSAS cable — see our SlimSAS range.\u003c\/p\u003e\n\u003ch3\u003eDoes it matter which end goes to the controller?\u003c\/h3\u003e\n\u003cp\u003eNo. This is a straight plug-to-plug assembly with no direction-sensitive electronics.\u003c\/p\u003e\n\u003ch3\u003eWhy is the drive count four per cable?\u003c\/h3\u003e\n\u003cp\u003eSFF-8643 carries four lanes, and a 12G backplane typically maps one lane to one drive. An 8-bay backplane needs two of these cables, or one SlimSAS 8x cable.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × MiniSAS HD to MiniSAS HD cable, 75 cm (SKU B07JLS9TXL)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eBacked by a 24-month warranty. If a link trains at reduced width or does not appear, contact us with your controller and device models and we will help you isolate the cause.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/minisas-hdsff-8643\"\u003eAll MiniSAS HD (SFF-8643) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/slimsassff-8654\"\u003eAll SlimSAS (SFF-8654) cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981370442024,"sku":"B07JLS9TXL","price":14.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/111.jpg?v=1712740143"},{"product_id":"dilinker-50cm-hd-mini-sassff-8643-to-u-2-sff-8639-nvme-ssd-cable","title":"DiLinKer MiniSAS HD (SFF-8643) to U.2 NVMe Cable, SFF-8639 68-Pin, 50cm, with SATA Power","description":"\u003cp\u003eA four-lane PCIe cable that takes the \u003cstrong\u003eSFF-8643\u003c\/strong\u003e port on your board or add-in card and turns it into a \u003cstrong\u003eU.2 (SFF-8639)\u003c\/strong\u003e drive connector, 50 cm away, with a SATA power tail to feed the drive. It carries PCIe lanes only — the physical connector is the same one SAS uses, but the wiring inside is not, and that distinction is the whole reason this page exists.\u003c\/p\u003e\n\u003ch2\u003eWhat this cable actually does\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt moves PCIe lanes, not SAS.\u003c\/strong\u003e SFF-8643 is a shell, not a protocol. On a motherboard, a riser or a PCIe switch card the four lanes behind that shell are PCIe; on an LSI RAID card or HBA they are SAS. This assembly is wired for the first case. Plug it into the second and the drive simply never appears — no error, no warning, no drive letter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe SATA tail is not optional in most builds.\u003c\/strong\u003e U.2 drives draw 3.3 V, 5 V and 12 V, and a 2.5″ U.2 SSD has no other power input. The 15-pin SATA tail on this cable is what feeds it. Chassis that supply power through a U.2 backplane do not need it, which is why the connector is there but detachable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 cm is the short option.\u003c\/strong\u003e This length is for builds where the drive cage sits close to the slot: 1U and 2U chassis, M.2-to-U.2 riser cards, and tower builds with the SSD in a bay next to the board. If your routing has to travel — front cage to a rear slot, or around a full-length GPU — take the 75 cm version instead of stretching this one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour lanes, straight through.\u003c\/strong\u003e Lane 0 to lane 0 and so on, no split, no re-driver, nothing to configure. A Gen3 x4 link gives you roughly 3.9 GB\/s of usable bandwidth, which is the ceiling for any single U.2 drive on this cable; the drive model does not change that number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eMiniSAS HD 4i, SFF-8643, 36-pin (plugs into the host port)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eConnector B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eU.2 \/ SFF-8639, 68-pin (plugs into the SSD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSATA 15-pin tail — 3.3 V \/ 5 V \/ 12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e4 (PCIe x4, straight 1:1 mapping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e50 cm end to end\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSignal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003ePCIe 3.0 x4 native; PCIe 4.0 where the host port and routing allow it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eNVMe over PCIe — no SAS, no SATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px;background:#f7f8fa;width:34%\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eB07JH92TD9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSFF-8643 ports on a motherboard, riser card or PCIe switch card that carry PCIe lanes\u003c\/li\u003e\n\u003cli\u003eM.2-to-U.2 add-in cards that expose an SFF-8643 output\u003c\/li\u003e\n\u003cli\u003e2.5″ U.2 NVMe SSDs (SFF-8639), any capacity or vendor\u003c\/li\u003e\n\u003cli\u003eGen3 and Gen4 platforms — the link negotiates to whatever both ends support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLSI \/ Broadcom RAID controllers and HBAs.\u003c\/strong\u003e Their SFF-8643 ports carry SAS lanes. A U.2 SSD will not enumerate through this cable on those cards, and we have tested it — please do not buy this for a RAID card.\u003c\/li\u003e\n\u003cli\u003eSAS or SATA drives — the 68-pin end is wired for PCIe, not for SAS signalling\u003c\/li\u003e\n\u003cli\u003eU.2 backplanes: those present a socket, so you need a cable with two SFF-8643 plugs instead\u003c\/li\u003e\n\u003cli\u003eAnything expecting a 12 Gb\/s SAS link — this is not that cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkstation with an M.2 slot and no free PCIe slot.\u003c\/strong\u003e An M.2-to-U.2 riser converts the M.2 slot into an SFF-8643 output; this cable carries it the last 50 cm to a 2.5″ U.2 drive mounted in a bay.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServer board with an onboard 8643 wired for NVMe.\u003c\/strong\u003e Some boards expose NVMe on SFF-8643 rather than on OCuLink or MCIO. Same cable, drive goes straight into the cage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBench and test rigs.\u003c\/strong\u003e Short, light and easy to re-route when you are swapping drives all day — the 50 cm length stays out of the way on an open frame.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eWill this work with my LSI RAID card?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e This is the single most common mistake with SFF-8643 cables, so it is worth being blunt: the connector fits, the drive does not appear. LSI RAID cards and HBAs drive SAS lanes through their 8643 ports, while a U.2 SSD needs PCIe lanes with NVMe on top. We have tested this combination and it is completely incompatible. If your card is a 94xx series Tri-Mode controller, the cable you want is our LSI94xx-specific twin-U.2 assembly instead.\u003c\/p\u003e\n\u003ch3\u003eDo I have to connect the SATA power tail?\u003c\/h3\u003e\n\u003cp\u003eYes for a bare 2.5″ U.2 drive — it has no other power input. Leave it unplugged only when the drive is already powered by a backplane or a powered cage. The tail carries 3.3 V, 5 V and 12 V, so a standard SATA power lead from the PSU is enough.\u003c\/p\u003e\n\u003ch3\u003eWill it run at PCIe 4.0?\u003c\/h3\u003e\n\u003cp\u003eThe cable is built for it and 50 cm is a comfortable length for Gen4, but the link is only as fast as the slowest part of the chain: a Gen3 slot or a Gen3 drive pins you at Gen3 speeds. Nothing breaks if the link trains one generation lower — you lose bandwidth, not the drive.\u003c\/p\u003e\n\u003ch3\u003eIs 50 cm long enough for my chassis?\u003c\/h3\u003e\n\u003cp\u003eMeasure the actual path, not the straight-line distance: from the port, around the drive cage, to where the SSD sits. If the answer is over about 40 cm of real routing, take the 75 cm version — pulling a short cable tight puts load on the 68-pin connector and that is where intermittent drives come from.\u003c\/p\u003e\n\u003ch3\u003eCan I use two of these to reach two drives?\u003c\/h3\u003e\n\u003cp\u003eOne cable, one drive. Each U.2 SSD needs its own four lanes and its own 68-pin connector, so two drives means two cables and two host ports. If your controller only has one 8643 port, look at a PCIe switch card or a U.2 backplane rather than trying to split this cable.\u003c\/p\u003e\n\u003ch3\u003eThe drive powers up but is not detected — what now?\u003c\/h3\u003e\n\u003cp\u003eCheck three things in this order: the port really carries PCIe (not SAS), the drive is seated fully in the 68-pin connector, and the SATA tail is on a live rail. If all three are fine, send us the controller or board model and the SSD model before returning anything — in our experience it is the port type far more often than the cable.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × SFF-8643 to U.2 (SFF-8639) NVMe cable, 50 cm, with SATA power tail (SKU B07JH92TD9)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003eEvery cable is continuity- and pinout-tested before it ships and carries a 24-month warranty. If a link does not train, send us the controller model and the backplane part number before returning anything — in most cases the cable is the wrong variant for the port, not faulty, and we would rather tell you that up front.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dilinker-75cm-hd-mini-sassff-8643-to-u-2-sff-8639-nvme-ssd-cable\"\u003eSame cable in 75 cm, for longer chassis routing\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/m-2-to-u-2-nvme-ssd-adapter-sff-8639-75cm\"\u003eNeed the 8643 port in the first place? M.2 to U.2 adapter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/u-2-nvmesff-8639\"\u003eAll U.2 \/ NVMe cables and adapters\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":47981371392296,"sku":"B07JH92TD9","price":18.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/41XabKi9mqL.jpg?v=1712028408"},{"product_id":"mcio-x8-to-2x-minisas-hd-sff-ta-1016-sff-8643-gen4-80cm","title":"DiLinKer MCIO x8 to 2*MiniSAS-HD x4, SFF-TA-1016 74Pin to 2*SFF-8643 36Pin, PCIe Gen4 Mini Cooledge IO Cable, 80cm","description":"\u003cp\u003e\u003cstrong\u003eKeep your MiniSAS HD backplane, move to a Gen4 MCIO board.\u003c\/strong\u003e The DiLinKer RMC74-8690-AX1 converts one MCIO 8x host connector (SFF-TA-1016, 74-pin) into two MiniSAS HD x4 ports (SFF-8643, 36-pin), 80 cm long. It is the cable you need when the motherboard is new — a PCIe 4.0 server or workstation platform with MCIO headers — but the chassis, drive cage or U.2 adapter you already own terminates in SFF-8643. Instead of replacing the backplane, you change one cable.\u003c\/p\u003e\n\n\u003ch2\u003eWhy this cable\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMCIO host, SFF-8643 device.\u003c\/strong\u003e Splits 8 host lanes into two independent x4 links, each on a standard 36-pin MiniSAS HD plug.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePCIe 4.0, 16 GT\/s per lane.\u003c\/strong\u003e Around 7.88 GB\/s per port — the full bandwidth of a Gen4 x4 NVMe drive, with no switch chip in the path.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects existing hardware.\u003c\/strong\u003e Reuse SFF-8643 backplanes, drive cages and U.2 adapters you have already bought and qualified.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo links, not one.\u003c\/strong\u003e Both SFF-8643 outputs carry four lanes each, so two devices run at full x4 width simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e80 cm for cable management.\u003c\/strong\u003e Enough length to route behind the riser and reach a rear cage without pulling the connector sideways.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePassive assembly.\u003c\/strong\u003e No retimer, no power, no configuration in BIOS or the OS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;width:38%;\"\u003e\u003cstrong\u003eHost connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eMCIO 8x, SFF-TA-1016, 74-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eDevice connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e2 × MiniSAS HD, SFF-8643, 36-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eLane configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e8 host lanes → 2 × 4 device lanes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003ePCIe generation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003ePCIe 4.0 (16 GT\/s per lane); backward compatible with 3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eBandwidth per port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e64 GT\/s (about 7.88 GB\/s at Gen4 x4)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e80 cm \/ 31.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eNVMe over PCIe only — the MCIO host port carries no SAS or SATA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eRMC74-8690-AX1\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eNet weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e60 g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSFF-TA-1016, SFF-8643, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;background:#fafafa;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e24 months\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWorks with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBoards with an MCIO 8x (SFF-TA-1016 74-pin) header — standard on most PCIe 4.0 server and workstation platforms from Supermicro, ASUS, ASRock Rack, Gigabyte and Tyan.\u003c\/li\u003e\n  \u003cli\u003eMiniSAS HD x4 NVMe backplanes and drive cages with SFF-8643 inputs.\u003c\/li\u003e\n  \u003cli\u003eU.2 adapters and converters that take an SFF-8643 input and present an SFF-8639 drive connector.\u003c\/li\u003e\n  \u003cli\u003ePCIe 3.0 equipment — the link negotiates down to 8 GT\/s automatically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDoes not work with\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePCIe 5.0 links. SFF-8643 is a Gen4-generation interface; use the MCIO to U.2 or MCIO to SlimSAS version if you need 32 GT\/s.\u003c\/li\u003e\n  \u003cli\u003eSAS or SATA drives. The SFF-8643 connector can carry SAS in other designs, but your MCIO host port carries PCIe lanes only, so the device must be NVMe.\u003c\/li\u003e\n  \u003cli\u003eSlimSAS (SFF-8654) or U.2 (SFF-8639) device connectors — this cable does not adapt to those directly.\u003c\/li\u003e\n  \u003cli\u003eOEM systems that re-map the MCIO pinout (some Dell, HPE and Lenovo chassis). Ask us with your model number first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard refresh in an existing 2U chassis.\u003c\/strong\u003e New Gen4 platform, existing SFF-8643 NVMe backplane, no chassis replacement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNVMe tier next to SAS storage.\u003c\/strong\u003e Add two NVMe devices to a server that already has a MiniSAS HD cage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorkstation scratch volume.\u003c\/strong\u003e Two Gen4 U.2 drives through SFF-8643 adapters, without using a PCIe slot.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLab and validation rigs.\u003c\/strong\u003e Swap drives and backplanes between MCIO and SFF-8643 hardware with one cable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhich MCIO breakout cable do you need?\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 10px;background:#f2f2ef;text-align:left;\"\u003eDevice side\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 10px;background:#f2f2ef;text-align:left;\"\u003eBest for\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:8px 10px;background:#f2f2ef;text-align:left;\"\u003eGeneration\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e2 × MiniSAS HD (SFF-8643)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e\n\u003cstrong\u003eThis product\u003c\/strong\u003e — reuse an existing SFF-8643 backplane or U.2 adapter\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003ePCIe 4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e2 × U.2 (SFF-8639)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eDirect-attach U.2 drives, highest bandwidth (\u003ca href=\"https:\/\/diliving.com\/products\/mcio-x8-to-2x-u-2-nvme-adapter-sff-ta-1016-gen5-80cm\"\u003eMCIO to 2× U.2\u003c\/a\u003e)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003ePCIe 5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003e1 × SlimSAS 8x (SFF-8654)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003eSlimSAS backplane, 8 lanes in one connector (\u003ca href=\"https:\/\/diliving.com\/collections\/slimsassff-8654\"\u003eSlimSAS cables\u003c\/a\u003e)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:8px 10px;\"\u003ePCIe 5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eDoes this cable support PCIe 5.0?\u003c\/h3\u003e\n\u003cp\u003eNo. SFF-8643 is a 4-lane interface defined around the Gen4 generation, and this assembly is specified to 16 GT\/s per lane. If your drives and board are Gen5, use the \u003ca href=\"https:\/\/diliving.com\/products\/mcio-x8-to-2x-u-2-nvme-adapter-sff-ta-1016-gen5-80cm\"\u003eMCIO to 2× U.2 version\u003c\/a\u003e, which is rated for 32 GT\/s.\u003c\/p\u003e\n\n\u003ch3\u003eWhy use SFF-8643 at all instead of going straight to U.2?\u003c\/h3\u003e\n\u003cp\u003eBecause the hardware you already own decides it. A Gen4 x4 NVMe link delivers the same 7.88 GB\/s whether it passes through a U.2 connector or an SFF-8643 connector — the connector is not the bottleneck. If your backplane or drive cage is SFF-8643, this cable is the cheaper answer than replacing the cage.\u003c\/p\u003e\n\n\u003ch3\u003eDo I need to enable PCIe bifurcation?\u003c\/h3\u003e\n\u003cp\u003eOnly if your board wires the MCIO 8x header as a single x8 root port. Many server boards ship that header already split as 2 × x4, or drive it from a PCIe switch, in which case no setting is needed. Check the board manual for that specific header.\u003c\/p\u003e\n\n\u003ch3\u003eCan I connect SAS drives to the SFF-8643 ends?\u003c\/h3\u003e\n\u003cp\u003eNo. The connector type alone does not decide the protocol — the host port does, and MCIO carries PCIe lanes only. Put a SAS drive behind this cable and it will not be detected. For SAS, use a SlimSAS to SAS cable with an HBA that speaks SAS.\u003c\/p\u003e\n\n\u003ch3\u003eBoth ports at full speed, or do they share bandwidth?\u003c\/h3\u003e\n\u003cp\u003eBoth are full x4 links. The eight host lanes are physically split 4 + 4, so each port has its own four lanes. There is no bridge chip and no shared uplink.\u003c\/p\u003e\n\n\u003ch3\u003eWill it work with a U.2 adapter that has an SFF-8643 input?\u003c\/h3\u003e\n\u003cp\u003eYes — that is one of the main uses. The adapter converts the 4-lane link to an SFF-8639 drive connector; the cable only has to deliver four clean PCIe lanes to it, which it does at Gen4 rates.\u003c\/p\u003e\n\n\u003ch3\u003eIs 80 cm safe at Gen4 speed?\u003c\/h3\u003e\n\u003cp\u003eYes, Gen4 (16 GT\/s) tolerates this length on a well-built passive assembly. Keep the run as direct as possible, avoid sharp folds, and do not coil excess cable tightly against power rails.\u003c\/p\u003e\n\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × MCIO 8x to 2 × MiniSAS HD cable, 80 cm (RMC74-8690-AX1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBacked by a 24-month warranty. If a link trains at reduced width or does not appear in the OS, send us your board and backplane models — width and pinout issues are usually identifiable from those two facts.\u003c\/p\u003e\n\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/mini-cooledge-iomcio\"\u003eAll MCIO \/ Mini Cool Edge IO cables\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/collections\/minisas-hdsff-8643\"\u003eMiniSAS HD (SFF-8643) cables and adapters\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/diliving.com\/products\/mcio-x8-to-2x-u-2-nvme-adapter-sff-ta-1016-gen5-80cm\"\u003eMCIO x8 to 2× U.2 NVMe, PCIe Gen5, 80 cm\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"DiLinKer","offers":[{"title":"Default Title","offer_id":51617440170280,"sku":"RMC74-8690-AX1","price":43.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/main-1.jpg?v=1775192768"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/collections\/4.jpg?v=1712033787","url":"https:\/\/diliving.com\/collections\/minisas-hdsff-8643.oembed","provider":"DiLiVing","version":"1.0","type":"link"}