CPU Socket:1155/1156/1150 CPU Support: LGA1155: Intel 3rd. Generation Core i3/i5/i7 Desktop Processors LGA 1156: Previous Generation Core i3/i5/i7 Desktop Processors LGA 1150: support up to TDP 65 Watts Solution: Mini-ITX Form Factor (with chassis height 2-inch and up) Overall Dimension: ø93.0 x 31.0 mm Weight: 185g Material: Aluminum 6063-T5 extruded radial fin heatsink Fan Dimension 80 x 80 x 15 mm Speed At Duty Cycle 20%: 800 RPM At Duty Cycle 50%: 1500 RPM At Duty Cycle 100%: 2500 RPM Bearing: 2 Ball Bearing Rated Voltage: 12 V Power At Duty Cycle 20%: 0.36 W At Duty Cycle 50%: 0.6 W At Duty Cycle 100%: 2.4 W Air Flow At Duty Cycle 20%: 9.24 CFM At Duty Cycle 50%: 18.48 CFM At Duty Cycle 100%: 30.80 CFM Noise Level At Duty Cycle 20%: 16 dBA At Duty Cycle 50%: 22 dBA At Duty Cycle 100%: 27.3 dBA Air Pressure At Duty Cycle 20%: 0.23 mm-H2O At Duty Cycle 50%: 10.93 mm-H2O At Duty Cycle 100%: 2.6 mm-H2O Lead Wire Pin Out Pin1-Black (-) Pin2-Yellow (+) Pin3-Green (Techometer/Signal output) Pin4-Blue (PWM)