Zalman ZM600-RS. Nominal power: 600 W, Input current: 11, 6 A, Efficiency: 87 %. Safety: FCC, CE, CB, Certification: 80 PLUS Bronze, NVIDIA SLI. Operating temperature range (T-T): 10 - 40 °C, Storage temperature range (T-T): -20 - 80 °C, Operating relative humidity range: 5 - 95 %