Aluminum Fan ·AF-12025EB 120mm, Aluminum frame, ultra quiet, long life.  Fan dimension 120 x 120 x 25mm  Fan speed 1500 RPM  Fan airflow 62.25 CFM  Fan air pressure 2.46 mm H20  Fan life expectancy 40000 hrs  Bearing type Ball+Sleeve  Voltage 12V  Noise 26.9 dB(A)