StarTech.com is the computer professionals' source for hard-to-find computer parts. It manufactures a complete selection of computer parts that are in demand by today's computer professionals and deliver the products you want, when and how you want them, worldwide. PRODUCT FEATURES: Works as an internal ATX power supply converter; Converts standard 24 pin ATX power supply to 20-pin ATX Power Supply; Adapter cable converts your existing standard 24-pin ATX power supply to work as a 20-pin ATX power supply.