Fast Ethernet or 100BaseT cable: Buy a cable for each PC that won’t be using wireless. You want an Ethernet cable, which resembles phone cable but with slightly thicker jacks. Ethernet cable is sometimes called Ethernet RJ-45, Cat 5, Cat 5e, Cat 6, Fast Ethernet, LAN cable, 100BaseT cable, or 1000BaseT cable. The names usually include a number relating to the cable’s speed rating: 10, 100, or 1,000. (Big numbers are faster, so opt for the fastest you find.)
