U.2 U2 SFF-8639 NVME PCIe SSD Cable Male to Female Extension 68pin Length:50cm The cable enables the extension of a U.2 connection. U.2 SFF-8639 68pin male to female. Data transfer rate up to 2 GB/s (PCI Express rev. 2.0) resp. 4 GB/s (PCI Express rev. 3.0)