Description Specifications Mfr Part Number: K5 Socket Type: LGA 1150/ 1155/ 1156 CPU Application: LGA1155 Supports Intel 3rd Generation Core i3/ i5/ i7 Desktop Processors, LGA1156 Supports Previous Generation Core i3/ i5/ i7 Desktop Processors Material: Aluminum 6063-T5 extruded radial fin heatsink Fan: Rated Speed: At Duty Cycle 20%: 1000 RPM At Duty Cycle 50%: 1800 RPM At Duty Cycle 100%: 2500 RPM Bearing: Double-Ball Rated Voltage: 12V Power: At Duty Cycle 20%: 0.72 W At Duty Cycle 50%: 1.80 W At Duty Cycle 100%: 3.60 W Air Flow: At Duty Cycle 20%: 14.98 CFM At Duty Cycle 50%: 33.80 CFM At Duty Cycle 100%: 46.96 CFM Noise Level: At Duty Cycle 20%: 14.7 dBA At Duty Cycle 50%: 22.7 dBA At Duty Cycle 100%: 29.8 dBA Air Pressure: At Duty Cycle 20%: 0.290 mm-H2O At Duty Cycle 50%: 1.544 mm-H2O At Duty Cycle 100%: 2.98 mm-H2O Lead Wire Pin Out: Pin1 – Black (-) Pin2 – Yellow ( ) Pin3 – Green (Techometer / Signal Output) Pin4 – Blue (PWM) Dimensions: Fan: 92.0 x 25.0 mm Overall: 92.0 x 41.0 mm Weight: 200.0 g RoHS Compliant