The cable is used to connect e.g. an SSD with U.2 interface to an M.2 NGFF converter with SFF-8643 port.

Specification
– Connectors:
1 x SFF-8643 plug >
1 x U.2 SFF-8639 socket
1 x SATA 15 pin power plug
– Data transfer rate up to 2 GB/s (PCI Express Rev. 2.0) or 4 GB/s (PCI Express Rev.3.0)
– Wire cross-section:
– 30 + 32 AWG data cable
– 18 + 24 AWG power cable
– Supports NVM Express (NVMe)
– Colour: black
– Length without connectors:
– Data cable approx. 75 cm
– Power cable approx. 10 cm

System requirements
– One free SFF-8643 interface
– SSD with U.2 port

Package contents
– U.2 SFF-8639 cable

Packaging
– Resealable bag