Etekcity 10 Port USB 3.0 Hub with 3 Power Switches, 5V/2.1A Smart Charging Ports, Build-in Surge Protector, 1-Year Warranty, 12V/4A Power Adapter(Latest VIA VL812 Chipset) Supports USB 3.0 transfer rates up to 5Gbps. Backwards compatible with 2.0 /1.1 devices Voltage and Current overload protection(surge protector) protect the Hub and conneted devices from electronically accident. Plug and Play and hot swapping. ON / OFF switches activate or deactivate individual ports Blue LED indicates normal operation; supports: Windows XP/Vista/7/8& Mac systems 3.1ft USB 3.0 Cable; CE and FCC approved; 12 Months Warranty