Thermaltake Toughpower GF A3 Gold 650W - TT Premium Edition - Internal - 3.3 V DC @ 18 A, 5 V DC @ 18 A, -12 V DC @ 0.3 A, 5 V DC @ 3 A, 12 V DC @ 54.17 A Output - 650 W - 1 +12V Rails - 1 Fan(s) - NVIDIA SLI Supported - 90% Efficiency: