Be Quiet Pure Power 12 850W 80 Plus Gold PSU Power Supply Experience incredible performance and a silent operation with the Pure Power 12 850W power supply from Be Quiet. Featuring 80 Plus Gold efficiency, a silence-optimised fan and modular cables. The 120mm fan has a max speed of 2000 RPM whilst maintaining a silent operation.     ATX 3.0 80 Plus Gold Silence-Optimised 120mm Fan Modular Cables   80 Plus Gold Certified The 80 PLUS Gold has an efficiency rating of up to 95.2% and provides a high operating efficiency. Experience lower power consumption and a quiet operation for your high-end system. Equipped with a silenced-optimised 120mm fan provides incredible airflow and is the ideal choice for quiet systems and gaming PCs. Thanks to lower power consumption, users benefit from lower operating costs whilst maintaining high airflow. Airflow-optimised fan blades are designed to reduce turbulance within your system also.