This Second generation 20G enclosure offers Real speed, not 10G or 5G. It is using USB 3.2 Gen 2x2 Chipset for Fast 20G Speed. The Chipset link the PCI Express Gen3 x4 to USB 3.2 Gen2x2 to your USB C port for the fastest read and write. This enclosure requires only one screw and is made strong with Aluminum Alloy and heat-dissipating properties. The installation is simple and easy using quick mount and one screw. The Anodized Aluminum embedded Heat Sink design keeps both the enclosure and your NVMe module cool at top speed. Designed with great features like USB 3.1 Gen 2x2, USB C native, UASP, Plug & Ready, Pocket size, and all the great support you can expect from Vantec Storage.