Evga supernova 850 t2 power supply evga supernova t2 power supplies offer unmatched efficiency and performance these units feature an unbelievable 96 efficiency along with evga eco mode to deliver absolutely zero fan noise during low to medium load operations backed by an award winning 10 year warranty and 100 japanese capacitor design the evga supernova t2 series deliver unbeatable performance features advanced hybrid cable management powercache extreme voltage and fan tuning c