Model No. SST-HE01 SST-HE01-V2 (adds AM4 supports) Material Nickel-coated copper base, heat pipes with aluminum fins Application Intel Socket LGA775/1150/1151/1155/1156/1366/2011/2066 AMD Socket AM2/AM3/*AM4/FM1/FM2 Heat Pipe Type 6mm-6pcs heat-pipe Cooling System 140 x 140 x 38mm fan Noise 18~41 dBA Bearing Dual Ball Bearing Voltage Rating (V) 12V Air Flow (CFM) 42.8~171CFM Start Voltage (V) 9V Life Expectance (hrs) 80,000 hrs Speed (R.P.M.) Low: 500~1200RPM with PWM High: 500~2000RPM with PWM Net weight 926g(w/o Fan) Dimension 140 (W) x 122(D) x 161(H) mm (w/o Fan) 5.51' (W) x 4.8' (D) x 6.34' (H) mm (w/o Fan)