Specification 1 x 12cm bearing Silent Fan Main Pin 20+4Pins SATA PIN Automatic Fan Control System AC input Voltage: 95-132VAC or 190-264 VAC switchable AC input Frequency:50HZ/60HZ AC input Current:10A res max. for 115VAC, 5A res max. for 230VAC Ripple-noise:5A res max. for 230VAC Operation temperature:0oC ~+40oC Overload protection :150% EMI Reduction Design Approved by UL, CSA, TUV, CB, CE, S, N,D,FI & FCC Support Intel &AMD, Support Over Ghz Pc