The Supermicro PWS-502-PQ is an 80 Plus Bronze level power supply capable of continuously supplying 500W output power at 86% efficiency. Enjoy the simplicity of active power factor correction (PFC) and automatically correct AC input for a full range of voltages and a super quiet 12cm fan to keep it cool under heavy loads. This power supply is designed to not only provide you reliable power to your desktop or workstation but also protects it from over voltage, over current and short circuiting via protective circuitry embedded into the unit. Rest easy knowing your hardware will be up and running with a mean-time between failure (MTBF) of greater than 200,000 hours and an LED indicator to keep you informed on normal/abnormal conditions for your PSU. All materials contained comply with RoHS requirements and are certified by Supermicro.