{"product_id":"dilinker-m-2-to-u-2-nvme-ssd-sff-8639-drive-to-m-2-host-adapter-u-2-ssd-converter-with-power-cable50cm","title":"DiLinKer U.2 NVMe SSD (SFF-8639) to M.2 Host Adapter, with SATA Power Cable, 50cm","description":"\u003cp\u003eYour board has no U.2 port, but it does have a spare \u003cstrong\u003eM.2\u003c\/strong\u003e slot. This adapter turns that slot into a \u003cstrong\u003eU.2 (SFF-8639)\u003c\/strong\u003e connection: a small card into the M.2 socket, a 50 cm cable out to the drive, and a SATA power lead from the PSU to feed it.\u003c\/p\u003e\n\u003ch2\u003eHow the direction works\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eU.2 drive, M.2 host — not the other way round.\u003c\/strong\u003e The card goes into the motherboard’s M.2 slot and the cable ends in a 68-pin SFF-8639 plug for a 2.5″ U.2 SSD. It does not convert an M.2 SSD into something you can drop into a U.2 bay; that is a different adapter and a different listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe M.2 slot has to be PCIe, not SATA.\u003c\/strong\u003e An M-key slot with PCIe lanes works. A B-key slot that only carries SATA does not, and no amount of adapter will change that, because NVMe needs PCIe lanes to exist at all. Check the board manual for the slot’s lane assignment before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 12 V comes from your PSU.\u003c\/strong\u003e An M.2 slot supplies 3.3 V only. A 2.5″ U.2 drive wants 3.3 V, 5 V and 12 V, so the SATA power lead in the box is not optional — without it the drive will not spin up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 cm of slack for mounting.\u003c\/strong\u003e Long enough to sit the drive in a 2.5″ bay or on a bracket while the card stays in the slot. It is not long enough to route across a full tower — we stock a 75 cm PCIe 4.0 version for that.\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\"\u003eM.2 M-key (PCIe x4)\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\"\u003eU.2 \/ SFF-8639, 68-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\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eSATA 15-pin lead to the PSU (12 V \/ 5 V \/ 3.3 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\u003eCable length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e50 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\"\u003eNVMe over PCIe — no SAS, no SATA drive support\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\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003eRPC75-0025\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\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #e3e6ea;padding:7px 10px\"\u003e6970958102887\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\"\u003eB07VB6L8SJ\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\u003eMotherboards whose M.2 slot carries PCIe lanes (M-key)\u003c\/li\u003e\n\u003cli\u003e2.5″ U.2 NVMe SSDs, any capacity or vendor\u003c\/li\u003e\n\u003cli\u003eDesktops, workstations and bench rigs with a free SATA power connector\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\u003eM.2 slots wired for SATA only (B-key) — NVMe needs PCIe\u003c\/li\u003e\n\u003cli\u003eConverting an M.2 SSD for use in a U.2 bay — that is the opposite direction\u003c\/li\u003e\n\u003cli\u003eSAS or SATA 2.5″ drives; the 68-pin end is wired for PCIe\u003c\/li\u003e\n\u003cli\u003eNotebooks and any chassis with no way to mount a 2.5″ drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical deployments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkstation with a spare M.2 slot.\u003c\/strong\u003e The cheapest way to add one U.2 drive when the board has no U.2 header and the PCIe slots are full.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBench and validation rigs.\u003c\/strong\u003e Swap U.2 drives between machines without opening a backplane or pulling a carrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall form factor builds.\u003c\/strong\u003e An M.2 slot is often the only free host interface left; this turns it into something a 2.5″ enterprise drive can use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eDoes it need external power?\u003c\/h3\u003e\n\u003cp\u003eYes. The SATA power lead is required — a U.2 drive needs 12 V, and the M.2 slot does not supply it.\u003c\/p\u003e\n\u003ch3\u003eWill it work in an M.2 slot that only does SATA?\u003c\/h3\u003e\n\u003cp\u003eNo. The slot must provide PCIe lanes. If the manual lists the slot as SATA-only, pick a different slot.\u003c\/p\u003e\n\u003ch3\u003eCan I boot from the drive?\u003c\/h3\u003e\n\u003cp\u003eOnly if the board firmware can boot from NVMe on that slot. Many boards can; older ones list the drive in the OS but not in the boot menu.\u003c\/p\u003e\n\u003ch3\u003eIs it Gen3 or Gen4?\u003c\/h3\u003e\n\u003cp\u003eThe adapter itself is passive, so the link runs at whatever the slot and the drive negotiate. For a Gen4 build we stock a 75 cm PCIe 4.0 version.\u003c\/p\u003e\n\u003ch3\u003eWill a U.3 drive work on it?\u003c\/h3\u003e\n\u003cp\u003eDo not assume it will. U.3 drives use a different pin assignment on the same 68-pin shell. Send us the drive model before ordering and we will confirm.\u003c\/p\u003e\n\u003ch3\u003eCan I use the M.2 slot for something else at the same time?\u003c\/h3\u003e\n\u003cp\u003eNo — the card occupies the slot. If you need both, look at a PCIe x4 to U.2 cable instead, which leaves every M.2 slot free.\u003c\/p\u003e\n\u003ch2\u003eIn the box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 × U.2 (SFF-8639) to M.2 host adapter card\u003c\/li\u003e\n\u003cli\u003e1 × 50 cm cable\u003c\/li\u003e\n\u003cli\u003e1 × SATA power lead\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\/m-2-to-u-2-nvme-ssd-adapter-sff-8639-75cm\"\u003eSame adapter, PCIe 4.0 and 75cm\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 x4 slot to U.2 cable — no M.2 slot used\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":47981367263528,"sku":"B07VB6L8SJ","price":28.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/1460\/6120\/files\/2-2.jpg?v=1712569102","url":"https:\/\/diliving.com\/products\/dilinker-m-2-to-u-2-nvme-ssd-sff-8639-drive-to-m-2-host-adapter-u-2-ssd-converter-with-power-cable50cm","provider":"DiLiVing","version":"1.0","type":"link"}