Universal Serial Bus
A hardware interface for low-speed peripherals such as the keyboard, mouse, joystick, scanner, printer, and telephony devices.
See the following for more information:
NIST SP 800-101 Rev. 1.
NIST SP 800-72.
Type of standard cable, connector, and protocol for connecting computers, electronic devices, and power sources.
See NISTIR 7621 Rev. 1 under Universal Serial Bus for more information.