USB 3.0 is the lastest USB standard, using  2 way data transfer mode instead of USB 2.0 times the half-duplex mode and parallel mode of adding more physical bus

 Provide a higher transmission speed 4.8Gb per second ; On the need for greater power to support the device provedes better upport, maximizing the power supply bus; Added new power managment functions ; Backward compatible with USB 2.0 devices