Complied with ATX12V standard Active Power Factor Correction (PFC) meet EN61000-3-2 High efficiency and reliability Compatible with European Union Directive 2002/95/EC (Restriction on Hazardous Substances). Remote ON/OFF function Internal 12V DC fan included Noise Killer (thermal fan speed control function) Low noise and ripple Output over voltage, short circuit, and over current protection 100% Hi-pot, ATE, and burn-in tested Re-settable power shut down Complies with FCC part 15 subpart J class B 115Vac operation, and CISPR 22 class B at 230Vac operation Approved by CUL/UL60950-1 2 nd TUV EN60950-1 2 nd , CB 60950-1 2 nd report, FCC, EM Temperature Range: Operating: 0°C ~ +50°C on full load; storage & shipping: -20°C ~ +80°C Humidity: 10-90% on operating, 95% on storage Dielectric Withstand: Primary frame ground 1800V AC for 1 second Efficiency: Typical > 87% Rise time: Less than 20ms Hold-up Time: 17ms minimum at nominal input voltage Power Good Signal: Power on delay time 100 ~ 500ms, off delay 1ms minimum (TTL and CMOS compatible) Leakage Current: Less than 3.5mA at 264Vac, 50Hz MTBF: 100,000 hours on maximum load at +25°C Dimensions (LxWxH): 140x150x86mm / 5.5x5.9x3.4inc