Thermaltake TOUGHPOWER GRAND 80 Plus Gold 1200W Semi Modular Power Supply TPG-1200MPCUS 80 PLUS Gold certified  with 87-93% extreme high efficiency @ 20-100% load to cut down electric cost. 24/7 @ 50oC: Guaranteed to deliver 1200W continuous power. Compliance with Intel ATX 12V 2.3 & SSI EPS 12V 2.92 standards. Proprietary dual ball bearing 14cm flower-shape fan enables longer lifespan and lowers overall noise output by dramatically reducing bearing frictions. 100% 105oC (221oF) Japanese made electrolytic & solid state capacitors: provide uncompromised performance and reliability under the harshest operating environment.