Color varies, with tapping programs you have a lot less time to kill, but with cable, you have 3 min. It will most likely say ethernet cable on the actual cable, bu it is usually grey and connects from ur computer to your router. BTW, a cable is said to give you 10x the speed of wireless internet. And if u still lag in ca after puting cable, then ur graphics card either needs to be updated or you need a newer 1.