Noctua Fan NF-S12B-FLX ......New Series.... 
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Dimensions 120x120x25 mm  
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Rotation system SSO-Bearing  
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Geometry of the blades NF-S12B  
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Blade Design with BBT  
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Nominal Speed 1200 RPM 900 RPM with L.N.A. 600 RPM with U.L.N.A.  
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Air flow 59.18 CFM 44.59 CFM with L.N.A. 28.95 CFM with U.L.N.A.  
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Noise level 18.1 dBA 10.6 dBA with L.N.A. 6.2 dbA with U.L.N.A. 1.31 mm  
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H2O pressure generated 0.76 mm H2O with LNA 0.34 mm H2O with U.L.N.A.  
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Consumption 1.2 W  
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Current consumption 0.1 A  
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Voltage supply 12V  
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Expected duration of more than 150,000 hours