Thermalright Case fan TL-B12 EXTREM SPECIFICATION:Rated Speed: 3150 RPM±10% (MAX) Noise Level: 40.5 dBA (MAX) Air Flow: 112 CFM (MAX) Air Pressure: 5.0 mm H2O (MAX) 64
Thermalright TL-E12B EXTREM SPECIFICATION: Rated Speed: 1850 RPM±10% (MAX) Noise Level: 27.7 dBA (MAX) Air Flow: 78 CFM (MAX) Air Pressure: 2.34 mm H2O (MAX) 33