Noctua NF-B9 92mm 1600RPM 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.
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.
Specifications
Size 92x92x25 mm
Bearing SSO-Bearing
Blade Geometry NF-B9 Blade Design
Rotational Speed (+/- 10%) 1600 RPM
Rotational Speed with L.N.A. (+/- 10%) 1300 RPM
Rotational Speed with U.L.N.A. (+/- 10%) 1000 RPM
Airflow 64,3 m³/h
Airflow with L.N.A. 52,6 m³/h
Airflow with U.L.N.A. 41,1 m³/h
Acoustical Noise 17,6 dB(A)
Acoustical Noise with L.N.A. 13,1 dB(A)
Acoustical Noise with U.L.N.A. 7,9* dB(A)
Static Pressure 1,61 mm H2O
Static Pressure with L.N.A. 1,09 mm H2O
Static Pressure with U.L.N.A. 0,64 mm H2O
Input Power 1,32 W
Input Current 0,11 A
Voltage Range 12 V
MTBF > 150.000 h
Scope of Delivery Ultra-Low-Noise Adaptor (U.L.N.A.)
Low-Noise Adaptor (L.N.A.)
4 Vibration Compensators
3:4-Pin Adaptor
4 Fan Screws
Warranty 6 years