The EVGA 500W Power Supply is a high-efficiency black power module designed for universal compatibility with ATX form factor motherboards. It features a single fan cooling system, 24 pin and 20+4 pin connectors, and a maximum power output of 500W. This power supply is suitable for a variety of computer systems and includes a California Prop 65 warning. With a sleek black color and modular design, the EVGA 500W Power Supply is a reliable choice for powering your computer setup. brand new in the box, ready to go. check out my other items for sale!