There are many brand names computers out there — Compaq, Sun, DEC and IBM just to name a few. When you need a used Compaq Proliant, you can trust Twin Cities Digital to provide you with the products you need. Choose from our many models, including used Proliant DL 560 and DL 580 products. Twin Cities Digital offers a large selection of hardware such as computers, servers and computer accessories to meet all of your technology and networking needs.