The Noctua NF-B9 Ultra Silent 92mm Fan features a highly-optimized blade design that achieves an exceptional level of airflow and static pressure that most other fans can only reach at much higher speeds. Bevelled blade tips, Vortex-Control Notches as well as Noctua's SC drive system and premium-grade SSO-Bearing ensure outstanding quietness and long-term stability.

Bevelled Blade Tips
Due to advanced design measures like the bevelled blade tips, the Noctua NF-B9 is surprisingly quiet despite its outstanding airflow and pressure performance.

Vortex-Control Notches
Psycho-acoustic optimizations like the Vortex-Control Notches make the NF-B9's noise pattern more pleasant to the human ear.

Smooth Commutation Drive
The new SC drive system reduces torque variations and thereby ensures improved running smoothness, particularly at lower speeds.

Self-stabilizing oil-pressure Bearing
Noctua's well proven SSO-Bearing technology guarantees supremely quiet operation and exceptional long-term stability.

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