ITEM NAME:0.5m/1.5ft Mini SAS SFF-8643 to U.2 SFF-8639 SSD Power Cable Wire 12Gb/s - Black Description: U.2 (SFF-8639) PCIe to Mini SAS (SFF-8643) SSD Cable. Use this cable to connect a U.2 port (SFF-8639) to a mini SAS (SFF-8643) connector. U.2 Ports come in M.2 Adapters that use M-key (). For Intel 750 SSD SFF-8643 Mini SAS . Kit Storage Controller Ultra M.2 PCIe 3.0 x4 Cable only Package Includes: 1 Piecex SAS SFF8643 To SFF8639 Cable.U.2 (SFF-8639) PCIe to Mini SAS (SFF-8643) SSD Cable. Use this cable to connect a U.2 port (SFF-8639) to a mini SAS (SFF-8643) connector. 1 Piecex SAS SFF8643 To SFF8639 Cable.