Total 4 USB 3.0 interface supports plug and play, easy to use and carry.Supporting over-current and instant current protection, protects the connected devices and itself.LED indicator for power status display, easy to read.Supporting USB 3.0 super speed(5Gbps) transmission, downward compatible with USB 2.0/1.1.Drive free, supports for Windows 2000/XP/Vista/Win 7/Linux/MAC OS 9.1 or higher.Item Name: USB 4 Ports HubMaterial: PlasticUSB Ports: 4 PortsData Transfer Rate: up to 5GbpsCompatible Systems: for Windows 2000/XP/Vista/Win 7/Linux/MAC OS 9.1 or HigherFeatures: Portable, 4 USB Ports, Cable Splitter, Plug and PlayCable Length: 25cm - 35cm/9.84" - 13.78" (Approx.)Length: 104mm/4.09" (Approx.)Width: 37mm/1.50" (Approx.)Thickness: 24mm/0.94" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x USB 4 Ports Hub (Others Not Included)