Amazon.com: Philips Ethernet Cable 3 ft. (0.9m) Cat5e Cat5 RJ45, Up to 100Mbps, for Router, Modem, Black, SWN7111A/27 : Electronics
If you have Cat5/6 cabling ran throughout your house and don't know how to utilize them for Ethernet, send me a PM and I'll be able to help get you started. :
Philips 14 ft. Cat 5e Ethernet Cable SWN7112A/27 - The Home Depot