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SFF-8643 to SFF-8639 cable with 15Pin SATA power connector .5m length

CableDeconn

CableDeconn SFF-8643 to SFF-8639 Cable 0.5m 15Pin SATA Power

SKU CH-C52D-XNGEK

Connects a 12 Gb/s Mini SAS HD 4i port to a U.2 NVMe SSD with integrated 15-pin SATA power over a .5 m cable

  • Connection typeUSB C to USB C
  • Connect U.2 NVMe drives via Mini SAS HD 12 Gb/s
  • 5 m cable keeps server chassis tidy
  • 15-pin SATA power connector supplies drive directly
  • 32 AWG data lines support PCIe 3.0 4-lane speeds
  • 36-pin SFF-8643 to 68-pin SFF-8639 interface match

Internal U.2 SSD cable for direct SAS connection

This CableDeconn cable links a 12 Gb/s Mini SAS HD 4i port (SFF-8643 36P) to a U.2 drive (SFF-8639 68P) and includes a 15-pin SATA power connector. It suits builders adding NVMe U.2 storage to a server or workstation backplane that exposes a SFF-8643 interface.

Sustained throughput follows the host PCIe

At PCIe 2.0 the link delivers up to 2 GB/s; at PCIe 3.0 it reaches 4 GB/s per lane for an aggregate of 16 GB/s across four lanes. The 32 AWG data conductors and 24 AWG power lines maintain signal integrity over the .5 m length during continuous read or write workloads.

Installation is a straight plug-in but orientation

Connect the SFF-8643 end to the controller, the SFF-8639 end to the U.2 SSD, and the SATA 15-pin plug to a power supply cable. The only common issue is reversing the SFF-8643 keying; the cable will not seat if the notch alignment is ignored.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $19.99
Pricier than about 77% of the 15,227 comparable items (median $14.99).

Specifications

Ports & slots
Connection typeUSB C to USB C

Questions about this item

Does the 32 AWG data line or 24 AWG power line generate noticeable heat when the 12G Mini SAS HD link runs all day?

The cable is a passive assembly with no active components, so it produces no measurable heat during continuous operation.

My motherboard only has a SATA 15-pin power connector — will that supply the U.2 SSD through this cable?

Yes, the 15-pin SATA female plug on the cable draws power directly from a standard SATA power header to feed the U.2 drive.

Will the SFF-8643 end plug into my older SAS HBA that only supports 6 Gb/s lanes?

The SFF-8643 connector is backward compatible with 6 Gb/s SAS controllers, though the link will negotiate down to the HBA's maximum speed.

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