The ACASIS USB3.2 Gen2 2×2 20Gbps NVMe M.2 Drive Duplicator Offline Clone Dock is a high-speed dock designed for duplicating and cloning NVMe M.2 drives. It features 10Gbps high-speed transmission, aluminum construction, and a sleek gray design. The unit is compact, measuring 11mm in height, 83mm in length, and 58mm in width. It comes with a 1-year manufacturer warranty and is manufactured in China. This dock is perfect for quickly and efficiently duplicating and cloning M.2 drives for secure storage and backup purposes.