40Gbps USB Type C Interface M.2 NVMe enclosure: Up to 40Gbps Exterme-speed M.2 NVME, the theoretical read and write speed can reach 3000MB/s. Great for turning your internal SSD into a portable external ssd and storing data. It is also compatible with Thunderbolt3/4, USB3.2/3.1/3.0/2.0 interfaces (Please be sure to use USB4.0 interface or Thunderbolt3 interface to achieve 40Gbps. Backward compatibility will limit the speed.) (the USB port requires an adapter or cable for use). Note: M-key connector , Only support Nvme Protocol, not support m.2 sata ssd. Plug and play, no drive and power supply required. Colour:grey Material:Aluminum alloy Size:100 x 48.5 x 13.5mm Package Contents: 1 x USB4.0 SSD enclosure 1 x Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.