Data - Cat-6 Patch Cables
Use Cat-6 patch cables (not Cat-5 or Cat-5e).
The best place to buy from is Monoprice.com. Monoprice is an excellent company that sells excellent products at a great price with low shipping cost.
You can get different lengths and colors and they typically cost less than $1 depending on length. Buy a length that comfortably can make the required connection distance but no longer than that or else things will quickly turn into a tangled mess.