Article / Updated 02-21-2017
USB is a serial bus standard that allows you to connect peripheral devices to a PC. In a home theater, USB can be found on the back of many computer-like source devices, such as MP3 servers and PVRs. Following are some details on USB connections and devices: Most printers, external modems, handheld computers, portable MP3 players, and other PC peripheral devices connect to PCs via USB.