I live in a pre-wired condo. So I don't really know what kind of cable is being used. Assume the cheapest you can buy, so its most likely cat5. It did work fine at 100 for a long time.. and even gigabit for at least a few months. The cable is also probably quite long in length, but I really have no easy way of finding out exactly how long it is. I would guess at least 25 feet long and 2 jacks in between computer & router.