DiLinKer SlimSAS 4X to U.2 NVMe Adapter, SFF-8654 38P to SFF-8639 68P Cable with Power, 75cm

One SlimSAS 4x port (SFF-8654, 38-pin) to one U.2 NVMe drive (SFF-8639), with the power branch built into the assembly. This is the single-drive version of our SlimSAS-to-U.2 family — the tidy way to hang a 2.5-inch NVMe SSD off a tri-mode controller, a PCIe switch card or a board header with one 38-pin port to spare.

Why this cable

• One port, one drive. A clean x4 link from a SlimSAS 4x host to a U.2 SSD — nothing shared, nothing split.
• Power built into the assembly. The drive’s power arrives with the data cable; no separate U.2 power adapter needed.
• SAS 4.0-class signalling. Handles PCIe and SAS traffic up to the host port’s rating; negotiates down automatically.
• 75 cm reach. Standard controller-to-bay routing inside towers and 2U chassis.
• Passive assembly. No firmware, no driver, nothing to configure.

Specifications

Compatibility

Works with

• Tri-mode and NVMe-capable controllers and boards with SlimSAS 4x (38-pin) ports.
• 2.5-inch U.2 (SFF-8639) NVMe SSDs.
• Chassis with standard internal drive power for the branch.

Does not work with

• SlimSAS 8x (74-pin) hosts — use the SlimSAS 8x to 2×U.2 cable for those.
• U.2 drives behind a backplane — run the host cable to the backplane port instead.
• SAS-only hosts driving NVMe drives — the protocol follows the host port.

Typical deployments

• Single-drive boot tier. One fast U.2 SSD off a spare 38-pin port.
• Cache or journal drives. Dedicated x4 links for write-intensive SSDs.
• Incremental expansion. Add U.2 drives one at a time as 4x ports free up.

Frequently asked questions

Do I need a separate power cable for the drive?

No. The assembly includes the drive power branch, so one cable does data and power.

How is this different from the 2-drive version?

The 2-drive version starts from a SlimSAS 8x 74-pin port and splits into two U.2 drives. This one is a single x4 link for a single drive from a 38-pin port.

Will it work with a SAS host?

For SAS traffic, yes. For NVMe drives, the host port must carry PCIe — a SAS-only controller will not enumerate an NVMe SSD.

Is the length right for my chassis?

75 cm covers most controller-to-bay runs in towers and 2U servers. Route it away from power cables and sharp edges for the cleanest signal.

In the box

• 1 × SlimSAS 4x to U.2 NVMe adapter cable with power, 75 cm (SKU B099DYK9CW)

Backed 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.

Related

• All U.2 NVMe (SFF-8639) cables
• All SlimSAS (SFF-8654) cables
• SlimSAS 8X to 2× U.2 NVMe Adapter with power, 75 cm