Dual-Ethernet port motherboards are probably only needed for enterprise scenarios, where, as part of their server setups, they need multiple connections separated via different Ethernet ports.

However, a routeris just one of many things you can plug into an Ethernet port. There are a lot of different devices that can be plugged into your computer's Ethernet port, and there are also ...

Whenever you see a box with a few Ethernet ports, it’s either referred to as a router, or a switch, sometimes people will even use the word “hub”! Fortunately, it’s simpler than it may seem.