12GB/s Mini SAS HD 4i Plug (SFF-8643 36P) to U.2 Plug (SFF-8639 68P) Cable with SATA Power.Pay attention to the connector type while using. Connector 1: 1 x SFF-8643 male; Connector 2: 1 x U.2 SFF-8639 male+1 x SATA 15 pin female Data transfer rate: PCI Express rev. 2.0 up to 2 GB/s; PCI Express rev. 3.0 up to 4 GB/s. PCIe Gen 3 4 Lane = 4 GB/s X 4= 16 GB/s Conductor diameter: 32 AWG data line; 24 AWG power line Support all NVMe SSD