All in 1 dual bay docking station allows an easy accessing with two 2.5 inch & 3.5 inch SATA I II HDD SSD, dual 6TB hard drive with USB 3.0 hub, backward with USB 2.0/1.1. High speed USB 3.0 interface with data transfer rate up to 5Gbps, 10 times faster than USB 2.0.