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Product discontinued.

The classic NF-B9 92mm fan helped to found Noctua’s reputation as a top-tier manufacturer of premium quality quiet cooling components and still impresses users with its exquisite quietness and superb performance. The new PWM version features Noctua’s novel, custom designed PWM IC for fully automatic control and ultra-low power consumption. Equipped with Noctua’s signature SSO bearing and topped off with a 6 years manufacturer’s warranty, the NF-B9 PWM is a proven premium choice for the highest demands.



Focused Flow Proven NF-B9 Design
Tens of thousands of quiet cooling enthusiasts swear by Noctua’s classic NF-B9. Its impressive quietness, excellent performance and impeccable, time-tested quality made the B9 a default choice for 92mm quiet cooling.

Bevelled Blade Tips Bevelled Blade Tips
Reducing critical rotor stator interaction, the NF-B9’s Bevelled Blade Tips permit to combine a higher blade surface area with quieter operation and thus form a cornerstone of the fan’s outstanding efficiency. button

Vortex-Control Notches Vortex-Control Notches
Noctua’s signature Vortex-Control Notches split up trailing edge vortices and thus spread the fan’s noise emission over a wider range of frequencies. This measure makes the NF-B9 PWM sound more pleasant to the human ear. button

PWM Custom designed PWM IC with SCD
Supporting fully automatic PWM speed control, the NF-B9 PWM uses Noctua’s novel, 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. button

LNA Low-Noise Adaptor
The NF-B9 PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 1600 to 1300rpm. The L.N.A can be used either to run the fan at a fixed speed of 1300rpm or to cap the maximum speed when using automatic PWM control.

Cabling Options Extensive Cabling Options
The fan’s short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows to connect a second NF-B9 fan to the same PWM fan header for automatic control.

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

Warranty 6 years manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-B9 PWM features an MTBF rating of more than 150.000 hours and comes with a full 6 years manufacturer’s warranty.




Noctua
29.10.2014 - Tweaks.pl NF-F12 industrialPPC-2000 PWM
Test verdict: "Poza tym wentylator zachował wszystkie cechy NF-F12, dlatego otrzymuje od nas ocenę 5/5 oraz dwie rekomendacje, po raz pierwszy wśród wentylatorów w kategorii jakość oraz doskonała wydajność." (Marcin Żyto, Tweaks.pl)
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29.10.2014 - Micougnou.com NF-F12 industrialPPC-2000 PWM
Test verdict: "C'est du lourd. Les performances sont excellentes" (Nicolas Henriques, Micougnou.com)
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29.10.2014 - modding.fr NF-A4x10 5V
Test verdict: "La série A n’entache en rien la réputation de Noctua, bien au contraire elle la sublime! Les performances collent proportionnellement aux dimensions des ventilateurs et avec un travail efficace sur le niveau sonore. Les optimisations présentes sur le cadre tout comme les pales, mais aussi au niveau du moteur et du roulement, contribuent à cette efficacité tant au niveau performance que sonore." (Bertrand Curras, modding.fr)
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29.10.2014 - PCReviews.es NF-P14s redux-1500 PWM
Test verdict: "Los ventiladores Noctua Redux tienen un magnífico rendimiento, gran diseño y son muy silenciosos, además son muy económicos. ¿Qué más se puede pedir de unos ventiladores?" (David Diaz Villa, PCReviews.es)
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