We have 4 computers and all have DSL connection. We have one DSL modem, and have a wireless network so every computer can use the DSL indivdually. You will need to make a network if you want to have all of the computers connected. Wireless is great..........sometimes I take the laptop out in the backyard and browse PT from there. No wires, out in the fresh breeze, on on fast DSL at the same time.