The unbeatable performance of the evga supernova p2 power supply line is now available in 850 watts based on the award winning p2 power supplies this unit features 80 plus platinum rated efficiency and clean continuous power to every component the eco control fan system offers fan modes to provide absolutely zero fan noise during low load to medium load operations backed by an award winning 10 year warranty and 100 japanese capacitor design the evga supernova 850 p2 power supply offers