TeckNet USB3.0 4 port +1 Charging port Hub With 12V/2A Power Adapter and USB 3.0 Cable [VIA VL812 Chipset], 2 Year Warranty 4 SuperSpeed USB 3.0 ports support data transfer rates of up to 5Gbps. (Note: actual rate will depend on the capability of your device.) Backward compatible with USB 2.0 / 1.1. Additional 1 USB power vertical port (2.1A) compatible with most charging devices goes to fast charging up maximum 2.1A Built-in surge protector safeguards your devices, while respiring LEDs display the status of all connections. High-grade chipset and 24W adapter guarantee steady operation Supports Plug and Play and hot swapping. No installation of drivers required for Windows XP / Vista / 7 / 8 or Mac OS X 10.2 and above Fashionable mirrored surface and compact design saves precious desktop space and allows device to be easily taken on the road