The universal serial bus protocol is used for the connection between a computer and its peripherals such as portable media players, network adapters and digital cameras. Apart from data transmission a USB cable is also able to supply power.
It is thanks to this combination that the USB cable has become a standard for portable devices such as smartphones and tablets.
USB 2.0 (High-speed USB) provides additional bandwidth for multimedia and storage applications and has a data transmission speed that is 40 times faster than USB 1.1.