USB

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.