SMAKN&reg; 9.8-inch ATX Power Supply 20 Pin to 24 Pin Motherboard Adapter Eliminates the need to purchase an expensive power supply with 24-pin power connector to replace your existing 20-pin power supply StarTech.com?s adapter cable converts your existing standard 20-pin ATX power supply to work as a 24-pin ATX power supply Adapter cable converts your existing standard 20-pin ATX power supply to work as a 24-pin ATX power supply