Features: This adapter card converts the M.2 M key (nvme) port on the mainboard to an ocul ink SFF 8612 port. Connect the U.2 SSD to the SFF 8639 data cable via ocul ink SFF 8611. Gold plated sinking technology, using high-density low resistance circuit boards. Equipped with standard OCUL ink SFF 8612 interfaces. Adopting M.2 M key port and NVME PCIE standard. Supports 2.5inch NVME U.2 (SFF 8639) SSD SSDs and other application supporting product. Specifications: Item: Mainboard M.2-M key (nvme) port to ocul ink SFF 8612 Port Converter Size:approx 8x2.2cm/315x0.87in System requirements: Supports Windows 7, 8, 8.1, 10 or higher versions, supports system UEFI2.3.1 or higher versions Host side interface: M.2 (M-Key), used to connect M.2 (M-Key) on the mainboard Slot device side interface: SFF-8639, used to connect NVME SSD and U.2 Package Includes: 1PC M.2-M key (nvme) port to ocul ink SFF 8612 Port Converter note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.