J12 Recommend for AMD Genoa Processor Family, Socket SP5, Aluminum Stacked Fins with Heat Pipes and Copper Heat Spreader Embedded in Aluminum Heatsink Base, Support up to 320 Watts CPU Power Heat Dissipation. Detail Specifications CPU Support AMD CPU Socket Genoa, Socket SP5 Solution 3U Server and Up Material Aluminum Fin + Heat pipes + Copper Heat Spreader Embedded Aluminum Heatsink Base Fan Dimension 80 x 80 x 38 mm Speed At Duty Cycle 20%: 2400 +/- 200 RPM At Duty Cycle 50%: 4800 +/- 10% RPM At Duty Cycle 100%: 8000 +/- 10% RPM Rated Voltage 12V Bearing Double Ball Power At Duty Cycle 20%: 1.2 W At Duty Cycle 50%: 5.52 W At Duty Cycle 100%: 24.72 W Air Flow At Duty Cycle 0-20%: 32.52 CFM At Duty Cycle 50%: 67.24 CFM At Duty Cycle 100%: 115.61 CFM Noise Level At Duty Cycle 20%: 25.63 dBA At Duty Cycle 50%: 47.85 dBA At Duty Cycle 100%: 64.40 dBA Air Pressure At Duty Cycle 20%: 1.39 mm-H2O At Duty Cycle 50%: 5.97 mm-H2O At Duty Cycle 100%: 34.06 mm-H2O Lead Wire Pin Out Pin Number 1-Black(-) Pin Number 2- Yellow(+) Pin Number 3- Green(Tachometer/ Signal Output) Pin Number 4- Blue (PWM) Thermal Grease Shin-Etsu 7762 Pre-printed Item Dimension (LxWxH) 6 x 5 x 6 Weight 2.1 lbs Warranty Information 1 year