Thanks to psychoacoustic optimizations like the Vortex-Control Notches, the new SCD drive system and Noctua's premium-grade SSO-Bearing, the NF-B9 achieves exceptional quietness and long-term stability.
Bevelled Blade TipsDue to advanced design measures like the bevelled blade tips, the NF-B9 is surprisingly quiet despite its outstanding airflow and pressure performance.
Vortex-Control NotchesPsychoacoustic optimizations like the Vortex-Control Notches make the NF-B9's noise pattern more pleasant to the human ear.
Smooth Commutation DriveThe new SC drive system reduces torque variations and thereby ensures improved running smoothness particularly at lower speeds.
Self-stabilizing oil-pressure bearingNoctua's well proven SSO-Bearing technology guarantees supremely quiet operation and exceptional long-term stability.