Description: Compliant with USB version:1.1/2.0/3.0 Voltage and Current overload protection protect the HUB and connected devices. Plug and play,easy to use,easy to carry Features LED indicator design,control of USB devices work status,Supports High-Speed(5G Mbps) System requirements:Windows XP / Vista / 7/8 & MAC with USB support Specification: The cable length:Approx.30cm Package Includes: 1 x 4 Port 3.0 USB Hub