These fans have been specifically developed to deliver significant airflow while maintaining low noise levels. Silent Series R2 fans are available in sizes from 40mm up to 140mm. All new Silent Series R2 fans are equipped with high performance hydraulic bearings, increasing both fan performance & reliability. Each fan 60mm & larger is packaged with both 4 metal screws & 4 rubber screws to ensure maximum fan-mounting options. Using the rubber screws allows mechanical decoupling from the case itself, reducing vibrations & decreasing the noise level (40 & 50mm feature metal mounting screws only). The cable on each Silent Series R2 fan is fully sleeved for effortless cable routing & enhanced aesthetics. Specifications Low Speed Normal Speed Speed 850 +/-200RPM 1200 +/- 10%
Dimensions 120x 120x 25 Weight 113, 3 Cable length 500 +/- 10mm Number of blade 11 Starting voltage <11 <6 Max. airflow (cfm) 28, 75 40, 59 Max. pressure (mm-H2O) 0, 54 1, 07 Noise level (db) 12 15