PartsCollection Delta PFC0812DE 3.30A, 80x80x38 MM PWM Function Hi-Speed 1500 - 10500 RPM, Max. 132.5 CFM, 12V Fan 4-Pin Plug Delta PFC0812DE with 4-Pin Plug Speed Control Function (PWM) Dimensions: 80x80x38 MM (3" x 3" x 1.5") Voltage: DC 12V; Current: 2.75A (Max. 3.3A); Input Power: 33W Rated Speed: 9000 RPM (1500 to Max. 10500 RPM); Air Flow: Max. 132.6 CFM Noise: 65.0 dBA (MAX. 70.0 dBA) 4th Wire for PWM Speed Control; 3rd Wire Speed Sensor (Tac Output), 3-Pin Compatible w/o PWM Function. running Max. Speed