M.2NVME to U.2 Card-Horizontal Support interface: M.2NVME protocol Expansion Interface: SFF-8643(need to use with U2 cable) Fixed Length: 2260/2280 Product Size: 8x2x1.5cm/3.15x0.79x0.59inch Color: Black Material: PCB Support to install 1 U.2 SFF-8639 HDD on the M.2NVME interface of the motherboard. Please make sure there is a PCle NVMe M.2 slot on the motherboard. SATA M.2NGFF slot is not supported for use!!!! Caution! Need to connect 5SF-8643 to SFF-8639 cable, the Adapter cable is not included in the product. Retain the 2260 position grain, can fix the 2260 position, Designed as a cut to ensure the strength of the 2280 when used. If you need to use 2260, you can use a tool to cut it according to the position of the grain and then fix it to make the month. Package Contents: 1pc Hard Disk Adapter Card