USB Hub

A device that increases the number of USB ports on a computer, typically providing at least four Type A sockets for expansion. Like any other USB device, the hub plugs into a USB port on the computer and provides four or more USB ports for peripherals.

The peripherals themselves may also contain hubs. USB hubs are often used to extend ports to the top of the desk to make it more convenient to connect and remove external peripherals. For example, a monitor may have a built-in USB hub in order to provide a convenient desktop location for plugging in other devices.