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Thin black cable with SFF-8643 and SFF-8639 connectors plus a SATA power plug

Vszerda

Vszerda SFF-8643 to SFF-8639 cable with SATA power .5m

SKU CH-VZ1F-N5S12

Connects a motherboard SFF-8643 PCIe port to a U.2 NVMe SSD with SATA power delivery over 0.5 m

  • Connector DetailSff-8639,sff-8643
  • Connects U.2 NVMe SSDs to motherboard SFF-8643 ports
  • SATA power connector delivers 3.3V and 12V to the drive
  • Supports 4x PCIe 3.0 and PCIe 4.0 speeds
  • Requires motherboard NVMe/PCIe protocol — SAS not supported
  • Half-metre length suits compact server builds

Vszerda SFF-8643 to SFF-8639 NVMe Cable

This cable connects a motherboard SFF-8643 port to a U.2 SFF-8639 NVMe SSD for internal expansion. It is designed for builders adding enterprise or high-capacity NVMe storage to a system with a compatible PCIe connector. The SATA power lead must be attached to the PSU to supply 3.3V and 12V power to the drive. It does not work with SAS or SATA protocol devices.

Straightforward install if the motherboard port is

The SFF-8643 connector plugs into the motherboard and the SFF-8639 end attaches to the U.2 SSD. A free SATA power cable from the power supply is required for the drive to function. Common issues arise when the motherboard SFF-8643 port uses SAS protocol instead of NVMe/PCIe, which this cable does not support. Hot-swapping is not supported, so the system must be powered down before connecting or disconnecting the drive.

Handles PCIe 3.0 x4 and 4.0 x4 speeds

The cable carries four lanes of PCIe 3.0 or 4.0 bandwidth between the motherboard and the U.2 NVMe SSD. Performance scales with the drive and motherboard capabilities up to the PCIe 4.0 x4 limit. It cannot be used for SAS or SATA drives, and it provides no functionality if the host port is not wired for NVMe/PCIe. The .5 metre length suits typical internal routing in server or workstation chassis.

Highlights

  • Connects U.2 NVMe SSDs to motherboard SFF-8643 ports
  • SATA power connector delivers 3.3V and 12V to the drive
  • Supports 4x PCIe 3.0 and PCIe 4.0 speeds
  • Requires motherboard NVMe/PCIe protocol — SAS not supported
  • Half-metre length suits compact server builds

Specifications

Brandchenyang
ModelSF-093-CY
Connector DetailSff-8639,sff-8643

Questions about this item

How can I confirm the .5 m SFF-8643 to SFF-8639 cable is working after connecting it to my motherboard and U.2 NVME SSD?

Ensure the motherboard SFF-8643 port uses NVME/PCIE protocol, attach the SATA power connector to the PSU for 3.3 V and 12 V delivery, boot into Windows 10 or later, and verify the drive appears in Device Manager or BIOS at PCIe 3.0 or 4.0 speeds.

What comes in the box with the Vszerda SF-093 cable and what must I purchase separately?

The package contains only the 1.64 ft SFF-8643 to SFF-8639 cable with an integrated SATA power lead; you must supply a compatible motherboard with an NVME/PCIE SFF-8643 port, a U.2 NVME SSD, and a free SATA power connector from your power supply.

Which version of the Vszerda cable should I choose for a PCIe 4.0 motherboard and U.2 NVME drive?

This single SF-093 model supports 4x PCIe 3.0 and PCIe 4.0 signalling, so it covers both generations; just confirm your motherboard SFF-8643 port is wired for NVME/PCIE and not SAS.

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