The PCIe to SFF-8643 Adapter is a hardware component that connects U.2 SSDs to a computer's PCIe slot through an SFF-8643 connector. Connecting finger: 1μ.
Mini SAS SFF 8643 to U.2 SFF 8639 Cable is particularly designed to connect an PCIe slot with SFF-8643 port and SSD with U.2 interface.