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Universal Serial Bus (USB)

Definitions:

  A hardware interface for low-speed peripherals such as the keyboard, mouse, joystick, scanner, printer, and telephony devices.
Sources:
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.
Sources:
NISTIR 7621 Rev. 1 under Universal Serial Bus