A USB Ethernet adapter is a small device that adds a wired Ethernet connection to a computer or other device through a USB port.
It is useful when a device does not have an Ethernet port or when its built-in network port is not working. The adapter lets the device connect to a router, switch or other wired network.
Related Terms: Ethernet, USB, Network Adapter, Ethernet Port, Network Interface Card, Network Switch, Router, Wired Network, USB Port, Network Connection