Enermax PRO 80+. Nominal power: 620 W, Peak power: 680 W, AC input voltage: 100 - 240 V. Fan diameter: 120 mm. Motherboard power connector: 24-pin ATX. 80 PLUS certification: 80 PLUS. Compatible operating systems: - Intel Core 2 Duo/Quad/i7/i5/i3 - AMD Athlon 64X2 & Phenom II X3/X4/X6 & SLI / CrossFireX