7 Port USB HubThis USB 3.0 hub can easily expand one of your computers USB ports into 7 port. (Note: This usb port hub not for charging devices because it support output Max Current only 900mA. Charging very slowly.) 5Gbps High-Speed TransmissionUSB port expander provides 5 Gbps stable data transfer, it is fast enough to transfer an HD movie in seconds. Backward compatible with USB 2.0 and USB 1.1 devices, and compatible with OTG function. (To use this function, the mobile phone needs to support OTG function)