The Rosewill SL-8400BTX 400W Desktop Power Supply #0404 is a reliable and efficient power module designed for ATX form factor desktop computers. With a maximum power output of 400W and a cooling system featuring one fan, this black power supply unit is compatible with universal brands and offers stable and consistent power delivery. The Rosewill SL-8400BTX model ensures a steady performance for your computer system while providing the necessary power for various components to function smoothly.