So I'm planning on building a PC, and the motherboard that I was looking at does not have a WiFi antenna. Now I already have the internet set up with a modem and router plugged into a coaxial cable going into the wall in my living room. There is, however, another coaxial cable coming out of the wall in my room. I figured I may as well make use of it and use it for a hardwired connection. Which brings me to my first question, can I do this? The motherboard has an Ethernet jack, so is there an adapter or some sort of way to connect the coaxial cable straight to my PC? To be honest I may already have such an adapter, as TWC gave me a bunch of junk when I first signed up, but I am currently 1000 miles away from my place. I just wanted to see if such a connection is possible before I move on with my PC build.