Compatible with USB 3.1 Gen 1 and data rate up to 5 Gbps. USB 3.0 Super Speed, 10 times faster transfer rate. Backwards compatible with USB 3.0/2.0/1.1 specifications Adds four USB 3.0 ports to your Macbook, Chromebook, or other laptop computers with a single USB plug Plug-and-play and hot-swap compatible Elegant aluminum housing