Tens of thousands of quiet cooling enthusiasts around the globe swear by
Noctua’s 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.

The redux product line reissues some of Noctua’s 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 Noctua’s reputation as a
first-tier supplier of premium grade low noise cooling equipment.

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 fan sound more pleasant to the human
ear.

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 fan’s outstanding
efficiency.

Supporting fully automatic speed control via PWM, the fan uses Noctua’s
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.

Combining the proven concept of hydrodynamic bearings 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.

Users can choose from Noctua’s 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.

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