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Specifically designed for low impedance case cooling applications, the classic NF-S12B 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-S12B premium fan. Its industry grade SSO-Bearing bearing, over 150.000 hours MTBF rating and full 6 years manufacturer’s warranty make the NF-S12B redux a proven premium choice that provides trusted Noctua quality at an attractive price point. The extra slow 700rpm version is ideal for ultra-low-noise applications and highly noise sensitive users who demand near-silent operation.
Details
Proven NF-S12B design

Proven NF-S12B design

Tens of thousands of quiet cooling enthusiasts around the globe swear by Noctua's classic NF-S12B. Thanks to its impressive quietness, excellent performance and impeccable quality, the NF-S12B has become an established reference for quiet 120mm fans.
Streamlined redux edition

Streamlined redux edition

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.
Designed for efficient case ventilation

Designed for efficient case ventilation

Typical PC case ventilation applications require high airflow but only medium static pressure. The NF-S12B has been specifically designed for high airflow efficiency and low noise in order to provide best results in these so called low impedance applications.
Bevelled Blade Tips

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 fan's outstanding efficiency.
Smooth Commutation Drive 2

Smooth Commutation Drive 2

The latest version of Noctua's advanced Smooth Commutation Drive system ensures superb running smoothness by eliminating torque variations and switching noises. This makes the fan remarkably quiet even at very close distances.
SSO-Bearing

SSO-Bearing

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.
Optional accessories

Optional accessories

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.
6-year manufacturer’s warranty

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.
NF-S12B redux-700
FAN Specification
Size
120x120x25 mm
Mounting hole spacing
105x105 mm
Connector
3-Pin
Bearing
Rotational Speed (+/- 10%)
700 RPM
Acoustical Noise
6,8 dB(A)
Static Pressure
0,44 mm H₂O
Max. Input Power
0,6 W
Max. Input Current
0,05 A
Voltage
12 V
MTTF
> 150.000 h
Scope of Delivery
  • Fan
  • 4 Fan Screws
Warranty
6 years
NF-S12B redux-700
Video Reviews
The following video reviews have not been created by Noctua. Responsibility for the information and views expressed in the videos lies entirely with the authors.
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15.04.2017 // Building a Gaming PC
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NF-S12B redux-700 Review

Each of the fans comes with mounting screws and is extremely simple to install. I installed each Redux fan in my test system then put them through their paces running the Witcher 3 at maximum settings on a GTX 1080Ti at 4K. The fans each remained whisper quiet even under full load, which is great news for hardcore gamers. But if you’re more of a casual gamer, and mainly use your PC for work or surfing the internet, you’ll barely notice these fans are on. This makes them a perfect choice for mini-ITX builds or a rig you’ve designed to sit under your TV in the living room.
Test verdict: "If you’re building a gaming PC, first make sure you don’t overlook cooling, second make sure you consider Noctua’s excellent line up. Recommended." (Chris Sealey, Building a Gaming PC)
12.04.2017 // Glob3trotters.com
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NF-S12B redux-700 Review

The attention to details is present everywhere and even though Noctua had to cut corners, they didn’t go overboard and kept what you would like to see like the fully braided cables and top-notch packaging that defiantly makes you feel like you are getting a high quality product at a good price.
Test verdict: "So, this Redux series is addressed to those on a budget, Noctua focusing on exactly what you need – a really good fan. So you will still get the SS0 bearing, very good performance and 6 years warranty with over 150k hours of MTBF. " (Alex Nistor, Glob3trotters.com)
03.03.2017 // TechHardware.it
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NF-S12B redux-700 Review

Noctua ancora una volta si è dimostrata all’altezza delle aspettative, è riuscita a commercializzare ventole dall’alto rapporto qualità/prezzo pur mantenendo costi contenuti. Eccellente come sempre la qualità costruttiva, si rivela versatile per diversi utilizzi mantenendo costi interessanti. Molto buono il packaging, sempre molto curato, sufficiente il bundle, c’è lo stretto indispensabile.
Test verdict: "Eccellente come sempre la qualità costruttiva, si rivela versatile per diversi utilizzi mantenendo costi contenuti. " (Tommaso Biallo, TechHardware.it)
03.03.2017 // PcGaming.games
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NF-S12B redux-700 Review

Una vez montados y en funcionamiento los ventiladores en el PC, lo primero que nos percatamos es el poco ruido que genera. En general, todos los modelos de la serie Redux son muy silenciosos e incluso estando al 100% son difíciles escuchar. Los más silenciosos de toda la gama son los ventiladores pequeños, qué puede ser a causa de tener las aspas más pequeñas.
Test verdict: "En esta valoración, hemos tenido en cuenta tanto las características técnicas, rendimiento y precio para valorar este producto. Los ventiladores tienen un precio muy bajo, pero sus características técnicas y el rendimiento son espectaculares." (Carlos Carraveo, PcGaming.games)
30.01.2017 // PC nadšenci
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NF-S12B redux-700 Review

Spoločnosť Noctua je v oblasti chladenia počítačov silné meno. Rakúska spoločnosť sa preslávila výbornými chladičmi procesorov a kvalitnými ventilátormi. Za kvalitu sa však platí, preto bývajú produkty Noctua často mimo záujmu bežného zákazníka, hráča. To sa však výrobca snaží zmeniť produktovou líniou Redux.
Test verdict: "Ventilátory Noctua z radu Redux si od nás odnášajú strieborné ocenenie za kvalitné spracovanie, 6 ročnú záruku, prijateľnú cenu a vysoký výkon." (Tomáš Brestovanský, PC nadšenci)
17.01.2017 // ITNdaily.ru
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NF-S12B redux-700 Review

Вентиляторы форм-фактора 120 мм являются одними из самых востребованных пропеллеров в современных корпусах и кулерах, даже несмотря на уменьшающееся с каждым годом тепловыделение комплектующих, особенно процессоров и видеокарт. Технологичные устройства от Noctua предлагают пользователю фактически бесшумную работу, высокую эффективность и разнообразие выбора; в ассортименте бренда представлены вертушки на любой цвет и кошелек.
Test verdict: "Noctua NF-S12B redux-700 на сто процентов корпусный вентилятор; недорогой, тихий и эффективный (в комплекте нет ничего лишнего). Но, опять же, при необходимости эта модель сможет заменить любой штатный пропеллер на СО для процессора, при этом замена почти наверняка окажется максимально ценной." (Евгений Никифоров, ITNdaily.ru)
28.12.2016 // OCClub.ru
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NF-S12B redux-700 Review

«Примочки», под которыми конечно подразумеваются цветные силиконовые гвозди и угловые подкладки, - они мне понравились. Называются, напомню, Anti-Vibration Pads (NA-SAVP1) и Anti-Vibration Mounts (NA-SAVP2). Недорогие, в упаковке их много, и реально снижают шум. Поменять всю систему охлаждения в корпусе – это влетит в «копеечку», а силиконовые гвозди могут немного все сделать тише, да и на будущее останутся. Гарантия 6 лет=) Серия IndustrialPPC – решения скорее специализированные, но 12 В модели к покупке можно смело рекомендовать. И я не знаю насколько на заводе будет полезна защита по стандарту IP67, но за возможность помыть вентилятор под краном просто спасибо Noctua. Redux – универсальность и доступность. Noctua, как известно, делать хорошие вещи, но дорогие. Благодаря изменению комплекта, а как следствие и конечной цены, но сохранению подхода к самому изделию, вентиляторы серии Redux в некоторой степени стали «ближе к народу».
Test verdict: "В этот раз не будет привычных плюсы/минусы. И силиконовые крепления Chromax, и вентиляторы серий IndustrialPPC и Redux – все это к покупке можно рекомендовать. К тому-же, на абсолютно всю продукцию компании 6 лет гарантии, что как-бы намекает на качество." (Oleg Ubeiko, OCClub.ru)
15.11.2016 // HwOverdrive.com
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NF-S12B redux-700 Review

Nonostante il bundle scarno, abbiamo potuto apprezzare lo stesso le prestazioni tipiche dei prodotti Noctua. Siamo rimasti piacevolmente sorpresi dalla linearità dello scaling operando in tensione.
Test verdict: "Possiamo affermare che per chi è in cerca di un prodotto dalle alte prestazioni, ma non vuole spendere troppo, le ventole della linea Redux sono l’ideale." (Attila Tortorella, HwOverdrive.com)
16.10.2016 // PC-Gaming.it
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NF-S12B redux-700 Review

Man mano che leggevamo i dati tecnici abbiamo capito fin da subito che la serie Redux si sarebbe distinta, ben consci anche degli ottimi prodotti della casa, non a caso il sistema di test era appunto un glorioso NH D-14, cuore degli amanti dell’overclock, superato solo dal migliorato NH-D15. Le impressioni su test si sono rivelate ottime, e si sono dimostrate ben sopra gli usi comuni.
Test verdict: "Chi desidera soluzioni più piccole, ha una vasta gamma da scegliere, e le Redux si sono dimostrate particolarmente efficienti." (Matteo Carrara, PC-Gaming.it)
20.09.2016 // Top10Games.es
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NF-S12B redux-700 Review

Como este verano ha hecho mucha calor, Noctua ha lanzado una solución para nuestros hornos equipos, la nueva gama de ventiladores Redux. En esta nueva gama encontramos ventiladores desde los 80mm hasta los 140mm. Ya disponible las nuevas versiones de los famosos ventiladores de Noctua, llamada Redux que pueden utilizarse en la refrigeración de cajas y radiadores. La serie Redux es la favorita entre los usuarios más entusiastas de todo el mundo y ayuda a que Noctua se establezca como uno de los mejores proveedores de equipamientos de refrigeración silenciosa de calidad.
Test verdict: "Noctua ha trabajado muy bien y ha realizado correctamente su trabajo con esta nueva gama Redux, ventiladores profesionales con unos materiales de gran calidad y rendimiento excepcional, pero con un coste asequible apto para todos los bolsillos." (Adrián José Pérez Toré, Top10Games.es)

Information Sheet (PDF)

Can I run Noctua 3-pin fans on 4-pin PWM connectors and use my mainboard’s automatic fan controller?

You can simply connect our fan's 3-pin connector to the 4-pin PWM sockets of today's mainboards so that the fourth pin that transmits the PWM signal is left blank (due to the shape of the connector, there's no danger of reversing polarity). Some mainboards (e.g. current Gigabyte models) are capable of controlling fans not only via PWM, but also by adjusting the supplied voltage. In some cases, this may require you to change BIOS options like "Fan Control Mode" from "PWM" to "Voltage" or "Analog". Please consult your mainboard's manual in this regard. However, some mainboards use an "auto" setting by default that automatically chooses PWM or voltage based regulation according to the connected fan. Automatically controlling the fan speed may not possible on mainboards that pulse the power rather than lowering the fan voltage.

PWM PWM

I get a CPU fan error despite the fan is running!

Some mainboards display a CPU fan error when the fan speed falls below a certain threshold, e.g. 900rpm. If you want to run the fan below this speed (e.g. using the supplied U.L.N.A.), please adjust the threshold in the BIOS or disable CPU fan error warning.

Can I disassemble my fan for cleaning (or other purposes, e.g. painting)?

In order to ensure flawless operation over many years of usage, all Noctua fans come with a premium grade SSO bearing, which is fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

It is thus recommended to clean your fans using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please don’t use a vacuum cleaner as this may apply excessive force to the fan.

Can I paint my Noctua fan in order to change its color?

Since even small variations in the layer of paint can lead to an imbalance of the impeller, resulting in vibrations, higher noise levels, increased stress on the bearing and thus reduced lifespan, we do not recommend painting the fan. Please note that for the reasons stated above, painting the fan will void your warranty.

What pin configuration do Noctua 12V fans use?

All Noctua fans feature the standard pin-configurations set out in the Intel and AMD specifications. These standard pin-configurations are used on most mainboards and fan controllers today:

pin configuration

How can I find out the direction of airflow and sense of rotation?

When looking at the fan so that the circular sticker with the Noctua logo is facing you, the direction of airflow is towards you and the sense of rotation is clockwise:

P14

How should I clean my Noctua fan?

Fans inside computer cases tend to accumulate dust over longer periods of usage. In order to maintain maximum performance, please clean your fans regularly using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please do not use a vacuum cleaner as this may apply excessive force to the fan and do not put the fan under running water as water residues inside the motor may lead to short circuits.
In order to ensure flawless operation over many years of usage, Noctua’s premium grade SSO bearings are fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

My Noctua 3-pin fan starts to spin when the PC boots but then stops, what is wrong?

Many mainboards are able to automatically regulate the fan speed of 3-pin fan via voltage based measures. However, due to limitations of this method it may occur that the mainboard reduces the voltage so much that the fan stops. To resolve the issue, you can:

  1. Choose a higher fan speed profile in the BIOS (e.g. „normal“ instead of „silent“, etc.) or deactivate automatic fan speed control and use a Low-Noise Adaptor instead.
  2. Use the mainboard‘s fan speed control software or 3rd party tools like Speedfan to regulate the fan speed. Unlike BIOS based fan speed control, the supplied software usually checks whether the fan has stopped and increases voltage accordingly or at least offer more options to set up the fan properly.

Can I use Low-Noise Adaptors with y-cables / multiple fans?

Yes, Low-Noise Adaptors (L.N.A.s) can be used with y-cables, but please make sure to use one L.N.A. per fan and to place the L.N.A.s between the y-cable and the fans as shown below. Never use one L.N.A. for two (or more fans) by placing it between the mainboard and the y-cable!

D15S

Can Noctua fans be used to replace noisy stock fans in NAS devices?

Noctua fans such as the 40, 60, 80 or 92mm NF-A series models are ideal for replacing noisy stock fans in NAS devices in order to make them quieter and thousands of users have managed to significantly reduce the noise levels of their NAS units this way. However, while it is easy and straightforward to replace the fans in some cases, it can be very difficult in others, so Noctua strongly recommends that users carefully research if it is possible to easily replace the fan(s) of their NAS device before purchasing a Noctua fan for this purpose. Some of the common issues that can occur when replacing NAS fans are:

  • Different pin assignment: Whereas Noctua fans use the standardised pin assignment for PC fans (see this FAQ for details), some NAS units use different assignments. For example, some devices have the power and GND or rpm and PWM pins swapped. Therefore please carefully verify that your NAS device uses the same pin assignment as standard fans. Experienced users may also change the pin assignment by cutting and resoldering the fan cables, but please note that this will void your Noctua manufacturer’s warranty.
  • Different pin functions: Noctua fans use the standardised pin functions for PC fans (see this FAQ for details); however, some NAS units use fans where certain pins serve a different function. For example, some devices use the RPM pin for “power good” signals. Therefore please carefully verify that your NAS device uses the same pin functions.
  • Firmware speed control: Some NAS devices demand a certain maximum or minimum fan speed. If the new fan doesn’t have the same or similar maximum or minimum speed, the device may display errors or even shut down.
  • Different starting voltage: Most NAS devices use voltage-based speed control. If the new fan has a higher starting voltage than the original fan, it may not start up right away. This may lead the NAS device to display errors or even shut down because it suspects a fan failure.
  • Different power draw: Some NAS devices monitor the fan’s power draw. If the new fan has a lower power consumption than the stock fan, the device might display errors or even shut down.

Please note that most NAS manufacturers don’t provide detailed documentation regarding fan compatibility and control, so users who want to replace the fans of their devices usually have to rely on “How to” guides, blog and forum posts or video tutorials. For example, there are excellent video tutorials available for changing the fans in popular Synology NAS models (DS416j, DS1515+ and DS1812+ in English, DS416/DS415/DS916/DS216/DS214 and DS1515+ in German). Please also note that fan compatibility and control can vary from model to model and even from revision to revision even if the devices stem from the same manufacturer. As a result, it is important to make sure that the information or guidelines you rely on when replacing your NAS fan are applicable to your specific model as well as your specific hardware and firmware revision.

Due to the possible issues listed above, Noctua recommends that only experienced users attempt to replace their NAS fans. Please note that since there are so many different NAS models and most of them lack documentation for aspects such as fan compatibility and control, Noctua customer support cannot assist you with compatibility issues when replacing NAS fans. Please contact your NAS manufacturer for any questions regarding aspects such as the device’s pin alignment or fan monitoring and control.

Can I use Noctua fans in my system from Acer, Apple, Dell, HP, Lenovo or other major brands?

Noctua 12V fans comply with the established specifications for standard PC systems issued by Intel and AMD. Systems from Acer, Apple, Dell, HP, Lenovo or other major brands often deviate from these specifications e.g. by using proprietary fan headers, custom pin-alignments or pin-configurations, different methods of fan speed control, etc. This can lead to compatibility issues when using Noctua fans in systems from said brands. Some of these problems can be avoided with some technical knowledge, but especially BIOS related issues (e.g. errors or shutdowns due to low fan speed) can often not be resolved. As a result, Noctua does not officially support systems from Acer, Apple, Dell, HP, Lenovo or other major brands.

Which Noctua fan or CPU cooler should I buy? How to choose the right model?

Not sure which Noctua product to buy? Our detailed buying guides for fans and CPU coolers help you to choose the model that works best for you.

Do you have a question concerning one of our products? Please use this form to pose a question!