What Is An Ethernet Port?

Question: What Is An Ethernet Port?

Answer: An Ethernet port is an opening on computer network equipment that Ethernet cables plug into. These ports are alternatively called jacks or sockets. Ethernet ports accept cables with RJ-45 connectors.

Ethernet Ports on Computers

Most computers include one built-in Ethernet port for connecting the device to a wired network. (A notable exception, the MacBook Air, does not but allows connecting an Ethernet dongle to its USB port.) A computer's Ethernet port is connected to its internal Ethernet network adapter.

Ethernet Ports on Routers

All popular broadband routers feature Ethernet ports. An uplink port (also called WAN port) is a special Ethernet jack on routers used specifically for connecting to a broadband modem. Wireless routers include a WAN port and typically four additional Ethernet ports for wired connections.

Ethernet Ports on Consumer Electronics

Many other types of consumer gadgets now also include Ethernet ports for home networking. Examples include game consoles, digital video recorders and even some newer televisions.