The classic NF-B9 is a long-standing favourite among enthusiast users around the world and helped to found Noctua’s reputation as a top-tier manufacturer of premium quality quiet cooling components. The new redux edition reissues this award-winning model in a streamlined, accessibly priced package that has been reduced to the essential core: the NF-B9 premium fan. Its industry grade SSO-Bearing, over 150.000 hours MTBF rating and full 6 years manufacturer’s warranty make the NF-B9 redux a proven premium choice that provides trusted Noctua quality at an attractive price point. The 1600rpm PWM version features Noctua’s proprietary NE-FD1 PWM IC for automatic speed control, which allows to strike a perfect balance between high cooling capacity and low noise operation in each given situation.

Proven NF-B9 design
Tens of thousands of quiet cooling enthusiasts around the globe swear by Noctuas classic NF-B9. Thanks to its impressive quietness, excellent performance and impeccable quality, the NF-B9 has become an established reference for quiet 92mm fans.

Streamlined redux edition
The redux product line reissues some of Noctuas most popular, award-winning models by presenting them in streamlined, accessibly priced packages. All redux edition products are industry proven, time-tested models that helped to found Noctuas reputation as a first-tier supplier of premium grade low noise cooling equipment.

Vortex-Control Notches
Noctuas signature Vortex-Control Notches split up trailing edge vortices and thus spread the fans noise emission over a wider range of frequencies. This measure makes the fan sound more pleasant to the human ear.

Bevelled Blade Tips
Reducing critical rotor stator interaction, Bevelled Blade Tips permit to combine extended leading edges and a higher blade surface area with quieter operation and thus form a cornerstone of the fans outstanding efficiency.

Custom-designed PWM IC with SCD
Supporting fully automatic speed control via PWM, the fan uses Noctuas custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at lower speeds.

SSO-Bearing
Combining the proven concept of hydrodynamic bearings with an additional magnet that supports the self-stabilisation of the rotor axis, Noctuas time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability.

Optional accessories
Users can choose from Noctuas wide range of optional accessories such as anti-vibration mounts, Low-Noise-Adaptors, y-cables, 3:4 pin adaptors or extension cables to upgrade redux edition fans according to their individual needs.

6-year manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the redux edition models feature an MTTF rating of more than 150.000 hours and come with a full 6-year manufacturer’s warranty.

FAN Specification
Size92x92x25 mm
Mounting hole spacing82,5x82,5 mm
Connector & pin-configuration4-pin PWM
Cable length40cm
BearingSSO-Bearing
Rotational speed (+/- 10%)1600 RPM
Min. rotational speed (PWM, +/-20%)350 RPM
Airflow64,3 m³/h
Acoustical noise17,6 dB(A)
Static pressure1,61 mm H₂O
Max. input power0,96 W
Max. input current0,08 A
Operating voltage12 V
MTTF> 150.000 h
Scope of delivery
Fan
4 Fan Screws
Warranty6 years