Sabrent High Speed 10 Port USB 3.0 HUB + 5V 2.1A Smart Charging Port with 3 Power Switches LED Indicators and 5V 5A Power Adapter (HB-3U10) 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. 9 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. Safe and reliable. Voltage and Current overload protection(surge protector) protect the Hub and conneted devices from electronically accident Additional charging port (2.1A) offers enough current to charge either a smartphone or a tablet at high speed. USB 3.0 ports supply 0.9A each.