Red Wing ·RW-12025MCH 120mm, manually adjustable RPM, ultra quiet, long life.  Fan dimension  120 x 120 x 25mm  Fan speed 1300-2500 RPM  Fan airflow Max 95.66 CFM  Fan air pressure Max 3.79 mm H20  Fan life expectancy 35000 hrs  Bearing type Sleeve  Voltage  12V  Noise  Max 40.72 dB(A)