The Coolmax AP-500X (CX-450B) ATX computer power supply is a quiet model with a single fan for cooling. It has a sleek black color and is compatible with ATX motherboards. This power supply unit has a maximum input current of 10A and a maximum power output of 500W, making it suitable for various computer components. With connectors for floppy drive, 4 pin peripheral, and SATA I, as well as a voltage switch feature, this power supply provides reliable and efficient power for your system.