{"product_id":"diliving-pcie-to-nvme-u-2-adapter-pcie-4x-to-sff-8639-interface-for-2-5-nvme-ssdpex4sff8639","title":"DiLinKer PCIe x4 to U.2 NVMe Adapter Card, SFF-8639 68-Pin, Drive Mounts on the Card, Full-Profile Bracket","description":"\u003cp\u003eA PCIe x4 card with a \u003cstrong\u003eU.2 (SFF-8639)\u003c\/strong\u003e connector built into it, so a 2.5″ NVMe SSD mounts straight onto the card and hangs off the slot — no cable, no drive bay, no power lead. It is the shortest possible path from a PCIe slot to a U.2 drive, and it is the right part when the chassis has a free slot but no usable 2.5″ mounting point.\u003c\/p\u003e\n\u003ch2\u003eWhen the card wins over a cable\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo cable, therefore no cable fault.\u003c\/strong\u003e The 68-pin connector is soldered to the card and the card sits in the slot. There is nothing to route, nothing to strain, and none of the intermittent-drive problems that come from a cable being pulled tight around a drive cage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits chassis that have no free 2.5″ bay.\u003c\/strong\u003e Small form-factor builds and rebuilt OEM machines often have the slot but not the mounting point. The drive travels with the card, so the chassis layout stops mattering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot-powered, no PSU lead.\u003c\/strong\u003e The card draws from the slot’s 12 V and 3.3 V rails and passes them to the drive through the 68-pin connector. No SATA or Molex tail to find a home for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-profile bracket, standard height.\u003c\/strong\u003e Ships with a full-height bracket fitted, so it goes into a normal ATX or rackmount chassis without modification. The card is a plain x4 device — no bifurcation, no switch chip, no driver.\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 x4 (backward compatible with PCIe 2.0 and 1.0)\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 interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eU.2 \/ SFF-8639, 68-pin, onboard\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 form factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e2.5″ NVMe SSD, mounted on the card\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\"\u003eFrom the PCIe slot — no external power 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\u003eBracket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eFull-profile, fitted\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\u003eCabling required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eNone\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\"\u003e3 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\"\u003eB07YKQ2C93\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\u003eAny x4, x8 or x16 PCIe slot on a desktop, workstation or server board\u003c\/li\u003e\n\u003cli\u003e2.5″ U.2 NVMe SSDs — all vendors, including Intel DC P3500 \/ P3600 \/ P3700, Samsung XS1715, OCZ Z-Drive 6000, HGST Ultrastar SN100\u003c\/li\u003e\n\u003cli\u003eChassis with clearance behind the card for a 2.5″ drive (roughly 7 mm plus the drive’s own thickness)\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 2.5″ drives — the connector is PCIe-wired\u003c\/li\u003e\n\u003cli\u003eDrives that exceed the slot’s power budget; check the SSD datasheet for high-power enterprise models\u003c\/li\u003e\n\u003cli\u003eLow-profile-only chassis without swapping the bracket\u003c\/li\u003e\n\u003cli\u003ex1 slots — the drive needs four lanes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall workstation with one free slot and no 2.5″ bay.\u003c\/strong\u003e Drive on the card, card in the slot, done in one step.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReusing a server U.2 drive in a desktop.\u003c\/strong\u003e No backplane, no RAID card, no cable — the cheapest way to get an enterprise SSD into a consumer board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest bench with drives swapped constantly.\u003c\/strong\u003e The drive unplugs from the card in place, so you never touch the slot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes the drive really just sit on the card?\u003c\/h3\u003e\n\u003cp\u003eYes. The 2.5″ SSD plugs onto the onboard 68-pin connector and is supported by the card itself, so it is cantilevered off the slot. That is fine for a stationary machine; if the build gets moved around a lot, a cable-and-bay solution spreads the load better.\u003c\/p\u003e\n\u003ch3\u003eWill it fit next to my graphics card?\u003c\/h3\u003e\n\u003cp\u003eMeasure first. The drive adds roughly 7 mm of thickness plus its own height behind the card, and a full-length GPU in the adjacent slot can leave less room than you expect. Most ATX builds are fine; dense rack chassis often are not.\u003c\/p\u003e\n\u003ch3\u003eIs it PCIe 4.0?\u003c\/h3\u003e\n\u003cp\u003eNo — this card is PCIe 3.0 x4. A Gen4 drive will run at Gen3 speed on it, which is around 3.5 GB\/s rather than 6–7. For Gen4 you want our PCIe 4.0 to U.2 cable instead.\u003c\/p\u003e\n\u003ch3\u003eDo I need any driver or firmware?\u003c\/h3\u003e\n\u003cp\u003eNo. There is no switch chip and no bridge on the card; it is a passive electrical adapter, so the drive appears exactly as it would on a native U.2 port. NVMe support comes from the OS.\u003c\/p\u003e\n\u003ch3\u003eWhy does the listing say PCIe 1.0 compatible?\u003c\/h3\u003e\n\u003cp\u003eBecause the card is passive — it will run in an old slot at whatever that slot negotiates. In practice you would not put a U.2 NVMe drive behind a Gen1 link, but nothing breaks if you do.\u003c\/p\u003e\n\u003ch3\u003eDrive not detected — what should I check?\u003c\/h3\u003e\n\u003cp\u003eWhether the slot shares lanes with an M.2 socket or SATA ports (common on consumer boards), whether the drive is fully seated on the card, and whether the drive’s power draw fits the slot budget. If all three are fine, send us the board and SSD models.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1 × PCIe x4 to U.2 (SFF-8639) adapter card, full-profile bracket fitted (SKU B07YKQ2C93)\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-pcie-4-0-x4-to-u-2-sff-8639-nvme-ssd-70cm-cable-no-additional-power-plug-required\"\u003ePrefer the drive in a bay? PCIe x4 to U.2 cable, 70cm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/m-2-to-u-2-nvme-ssd-adapter-sff-8639-75cm\"\u003eM.2 slot instead of a PCIe slot? 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":47981366608168,"sku":"B07YKQ2C93","price":18.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/4001.jpg?v=1713148641","url":"https:\/\/diliving.com\/products\/diliving-pcie-to-nvme-u-2-adapter-pcie-4x-to-sff-8639-interface-for-2-5-nvme-ssdpex4sff8639","provider":"DiLiVing","version":"1.0","type":"link"}