FeaturesThe Delta 120 x 25mm Extreme High-Speed Fan is an outrageously high performance fan that moves over 150 cubic feet of air every minute, the highest CFM 120x25mm fan readily available. It also has an amazing near 3:1 airflow to noise ratio. The 120mm EH features the same directional fin design characteristic of FFB series. The fan has RPM TAC output through its 3 Pin connector.