300W SFX12V Power Supply Complied with SFX and SFX12V standard; Active Power Factor Correction (PFC); High efficiency and reliability; Remote ON/OFF function; Internal 12V Dc Fan Included; Noise Killer (Thermal Fan Speed Control Function); Low noise and ripple; Complies With Fcc Part 15 Subpart J Class B 115Vac Operation, And Cispr 22 Class B At 230Vac Operation;