MDTC-E006 4 ports usb 2.0 hub 1,4 ports 2,supports USB2.0/1.1, 3,No driver required,plug and play,support hot swapping ... ; Item NO: MDTC-E006 4 ports usb 2.0 ... (max.); USB 2.0 high speed transfer port, compatible USB 1.1 downwards; the transfers speed is up to be 480Mbps No driver required,plug ...