1M.2 NVME SSD Hard Disk box that supports USB3.2 20Gbps speed. It is equipped with the latest USB3.2 Gen2x2 master chip, and can support up to 10Gbps transmission bandwidth. 2.The shell adopts ABS + double-layer aluminum alloy heat sink design. A silent cooling fan is installed inside to improve the heat dissipation effect and the heat dissipation efficiency is excellent. 3.Compatible with four different specifications of M.2 NVME 2230,2242,2260,2280 SSD, up to 2000 MB / s transmission rate.