ARCTIC F Pro PWM The ARCTIC F Pro PWM fan outperforms other 80mm/92mm/120mm fans in the market, in regards to their performance/noise ratio. With efficient central cooling, the ARCTIC F Pro PWM fans offer excellent cooling and noise control performance for the system. Noise Level F8 : 0.3 SoneF9: 0.4 SoneF12: 0.3 Sone Fan Speed F8 : 700 - 2000 RPMF9 : 700 - 2000 RPMF12 : 400 - 1500 RPM Airflow F8 : 33 CFM / 56.1 m3/hF9 : 39 CFM / 66.3 m3/hF12 : 54 CFM / 91.7 m3/h Bearing Fluid Dynamic Bearing Dimensions (Packaging) F8 : 82 L x 82 W x 35 H mmF9: 95 L x 95 W x 37 H mmF12: 123 L x 123 W x 40 H mm Dimensions (Product) F8 : 80 L x 80 W x 32 H mm F9 : 93 L x 93 W x 35 H mmF12 : 120 L x 120 W x 38 H mm Limited Warranty 2 years UPC F8 : 0872767002364F9: 0872767002371F12: 0872767002388 Net Weight F8 : 96 gF9: 111 gF12: 177 g itemnumber AFACO-12PP0-GBA01 UPC Gross Weight 0.2 kg