Corsair CV Series™ CV650 — 650 Watt 80 Plus® Bronze Certified PSU80 Bronze certified efficiency provides up to 88% operational efficiency generating less heat and lowering your energy costs CORSAIR CV Series power supplies are to deliver their full rated wattage of continuous power A 120mm thermally controlled low noise cooling fan only spins at high speed when your power supply is under heavy stress slowing down for quieter operation at lower loads Compact 125mm long casing ensures an easy fit in almost all modern