Bearing Type: UFB (Updraft Floating Balance) RPM: 1200 ± 10% rpm - 900 ±10% rpm(Q.S.A) - 750 ±10% rpm(Q2.S.A) Air Flow: 78.1 CFM - 60.1 CFM(Q.S.A) - 45.1 CFM(Q2.S.A) Noise Level: 19 dB (A) - 15.2 dB (A)(Q.S.A) - 13.4 dB (A)(Q2.S.A) Power Connector: 3 / 4 Pin Color: Orange Compatibility: Case Dimensions: 140 x 140 x 25 mm