Seasonic S12D-850. Nominal power: 850 W, AC input voltage: 100 - 240 V, AC input frequency: 50/60 Hz. Safety: CB, cTUVus, SEMKO, TUV, GOST-R, Certification: CE, UKR, FCC, C-tick. Operating temperature range (T-T): 0 - 50 °C, Operating relative humidity range: 20 - 80 %