USB stand for universal serial bus. It is a component of electronics device; this port is available in mobile android adopter, CPU and Laptop, an industry standard for short-distance digital data communications. USB ports allow USB devices to be connected to each other with and transfer digital data over USB cables. They can also supply electric power across the cable to devices.
It is available in wired and wireless versions of the USB standard exist, although only the wired version involves USB ports and cables.