In addition, USB 3.0 can reduce energy use, reduced from 4.4 V to 4 V the rest but increase the speed at which energy was sent to the 500 mA is 900 mA.
In addition USB 3.0 has reduced energy consumption in use, less V from 4.4 to 4 V but increase the speed of the transmission power, a lot of up to 900 500 mA mA