Power Supply ATX 500W GAMEMAX GP-500, 80+ Bronze, Active PFC, 140mm Ultra Silent Fan. Dimensions: : 158mm x 85mm x 150mm (W x H x D)Input Voltage: : 100-240 VACInput Current: : 3.5-7AInput Frequency Range: : 50-60HzPFC: : Active PFC (>.99)Power Good Signal: : 100-500 msHold Up Time: : >17msEfficiency: : > 81% (85% max)MTBF: : > 100,000 HoursProtection: : OVP / UVP/ OTP / OCP/ OLP/ OPP/ SCPPower: : 500WOperation Temperature: : 0-40CSafety: : CE / FCC / CBCooling: : 140mm Ultra Silent FanNoise: : mai mic de 25dBa80 Plus Certified: : Yes - 80 Plus Bronzehttp://www.gamemaxpc.com/productkkk/showproduct.php?id=253