Fan Technology may be one of the most under-rated tech in the PC industry, so thank God for the specialists such as Noctua. They have just introduced the new NF-S12 120mm
fan series, specifically developed for the ultra-low-noise range The
NF-S12 fans are up to 10% quieter at the same flow rate than current
high-end fans due to the sound-optimised blade geometry of the Noctua
Straight-Blade-Design and the self-stabilising oil-pressure bearing (SSO
bearing). The NF-S12 is the first fan employing a novel rotor which was developed
by the Austrian Institute for Heat-Transmission and Fan Technology. Thanks to the special optimisation of the blade geometry towards
ultra low noise application, it works more efficient than comparable
products at low RPM.

Fan Technology may be one of the most under-rated tech in the PC industry, so thank God for the specialists such as Noctua. They have just introduced the new NF-S12 120mm
fan series, specifically developed for the ultra-low-noise range The
NF-S12 fans are up to 10% quieter at the same flow rate than current
high-end fans due to the sound-optimised blade geometry of the Noctua
Straight-Blade-Design and the self-stabilising oil-pressure bearing (SSO
bearing). The NF-S12 is the first fan employing a novel rotor which was developed
by the Austrian Institute for Heat-Transmission and Fan Technology. Thanks to the special optimisation of the blade geometry towards
ultra low noise application, it works more efficient than comparable
products at low RPM.

“In order to make their products more silent, fan manufacturers usually
simply reduce RPM without adapting the rotor design to the modified
fluid dynamic parameters”, explains Mag. Manfred Stadler MBA of the
Austrian Institute for Heat-Transmission and Fan Technology. “Using a
blade geometry specifically optimised for lower speed ranges like the
Noctua Straight-Blade-Design allows for much better performance than
simply reducing RPM.”

Running at 1200rpm, the NF-S12-1200 provides a flow rate of 81m³/h at a
noise level of only 17dB(A). Using the supplied Ultra-Low-Noise adaptor,
the noise level can be reduced below 6dB(A). The NF-S12-800 delivers
59m³/h at 800rpm producing a mere 8dB(A) and can be throttled to below
5dB(A). The NF-S12 series are equipped with a magnetically centred, self
lubricating oil-pressure bearing (SSO bearing) that surpasses current
types of ball-, sleeve- and liquid bearings in long-term stability and
quietness thanks to its new, improved principle of operation.

“We are proud that the SSO bearing is not only more durable than current
top-level ball bearings and works quieter than modern sleeve bearings,
but also provides significant advantages in longevity over normal
fluid-dynamic and hydro-dynamic bearing thanks to the additional
magnet”, says Mag. Roland Mossig, CEO of Noctua. “The NF-S12 fans
provide the maximum in quality and quietness available today!”

The scope of delivery of the NF-U12 series includes an Ultra-Low-Noise
adaptor (U.L.N.A.) that allows for a further reduction in noise
emission, 4 vibration compensators for vibration-free installation as
well as a 3:4 pin adaptor and fan screws.