Noctua NF-B9 Ultra Silent 92mm Fan

The NF-B9's highly-optimised blade design 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.

Features:

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

Vortex-Control Notches
Psychoacoustic 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.

Fan specs:
Model: Noctua NF-B9
Air Flow: 24 - 38 CFM
Fan Speed: 1000 - 1600 RPM
Noise Level: 12.6 - 19.8 dBA
Power: 1.32 watt
Fan Size: 92x92x25 MM

Includes:
Ultra-Low-Noise Adaptor (U.L.N.A.)
Low-Noise Adaptor (L.N.A)
4 Vibration Compensators
3 to 4-Pin Adaptor
4 Fan Screws