The Supermicro CBLSAST0957 enables MiniSAS HD SFF8643 to U2 PCIE SFF8639 with power cable connections for storage The length from U2 to MiniSAS HD is 55cm and from U2 to 4pin is 45cm This cable is compliant with T10 and SFF standard and is verified with Supermicro servers AOC cards and storage Each Supermicro cable is validated to ensure quality and performance Features. Copper Cable Assembly. MiniSAS HD to U2 with 4 Pin Power Cable. U2 NVMe Compatible. Supermicro CertifiedSpecifications. Cable Type MiniSAS HD Cables. Connectors MiniSAS HD SFF8643 with 4pin power. Length 55 cm. Weight 05 lbs