Beveled blade tips reduce critical rotor/ stator interaction, combine a higher blade surface area with quieter operation and form a cornerstone of the fan''s efficiency.
Vortex-control notches split up trailing edge vortices and spread the fan''s noise emission over a wider range of frequencies.
Supporting fully automatic speed control, the NF-B9 uses Noctua''s novel, custom-designed NE-FD1 IC that integrates Smooth Commutation Drive (SCD) technology.
The NF-B9 PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 1600 to 1300rpm. The L.N.A can run the fan at a fixed speed of 1300rpm or cap the maximum speed when using automatic control.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 6 inch
Height : 1.5 inch
Length : 7.2 inch

Item Weight: 0 ounce (View shipping rates and policies)
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ASIN : B006ISKYPE