USB2 or 2.0 is a faster version of the original USB port, which allows external peripherals, such as printers, cameras, and scanners to be attached to a computer. USB 2.0 speeds up USB performance as much as forty times the speed of the original USB connection (12 Mbps) to reach speeds of 480 Mbps (megabits per second). USB2 uses the same cables and connectors as USB1 and is both forward and backward compatible with USB1. USB2 is capable of running USB1 devices, and USB2 devices can be used with USB1 enabled computers (at USB1 speeds).