The Supermicro PWS-903-PQ is an 80 Plus Gold level power supply capable of continuously supplying 900W output power at 90% efficiency. Enjoy the simplicity of active power factor correction (PFC) and automatically correct AC input for a full range of voltages, along with a quiet fan to keep it cool under heavy loads. This power supply is designed to provide reliable power to your desktop or workstation while protecting 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 100,000 hours and an LED indicator to keep you informed on normal and abnormal conditions for your PSU. All materials contained comply with RoHS requirements and are certified by Supermicro.