A-41 88885597 Features: CPU socket AMD® Socket SP3/TR4 Type 1U Active TDP up to 225 Watt Material Copper with VC Base Thermal paste Shin-Etsu 7762 Pre-printed Specifications: CPU Support AMD® Ryzen Threadripper/EPYC Processor CPU Socket sWRX8/sTRX4/TR4/SP3 Screw Type M3.5 Installation Torque 12.5-15.1 in-lb Solution 1U Server and Up Dimensions 120 x 82 x 28.6 mm Weight 480g Material Copper1100 Heatsink with Vapor Chamber Base Fan Dimension Ø80 x 13 mm Speed At Duty Cycle 20%: 2000 ± 200 RPM At Duty Cycle 50%: 4900 ± 10% RPM At Duty Cycle 100%: 8600 ± 10% RPM Power At Duty Cycle 20%: 1.08 W At Duty Cycle 50%: 4.70 W At Duty Cycle 100%: 23.45 W Bearing Ball Type, Double Rated Voltage 12V Air Flow At Duty Cycle 0~20%: 5.59 CFM At Duty Cycle 50%: 14.76 CFM At Duty Cycle 100%: 26.25 CFM Noise Level At Duty Cycle 20%: 23.3 dBA At Duty Cycle 50%: 43.5 dBA At Duty Cycle 100%: 62.2 dBA Air Pressure At Duty Cycle 20%: 3.69 mm-H2O At Duty Cycle 50%: 25.28 mm-H2O At Duty Cycle 100%: 89.80 mm-H2O Lead Wire Pin Out Pin1- (-) Pin2- (+) Pin3- (Techometer/Signal output) Pin4- (PWM) Life – Continuous operating under normal temperature (40 °C or 104 °F) 70,000 Hours