Noctua NA-FK1 Redux, Second Fan Upgrade Kit for NH-U12S Redux Cooler
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Harp53
> 3 daySolid upgrade for the single fan. Second time ordering the product but glad this one came in.
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S. S.
> 3 dayIts a good little kit, it helped my cpu temps. My only real complaint is how thick the anti-vibration pads are. Theyre twice as thick as the pads that come with the original cooler, and the chromax vibration pads I had bought for some additional case fans. As far as I can tell theyre made this thick specifically for this kit and it made installation more difficult than it needed to be. It also causes the fan not to sit directly against the cooler fins. The coolers original fan does sit flush, so Im not sure why they make this kit so that the new fan doesnt.
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anon
> 3 dayThe fan is quite silent under 1500rpm and is a really good fan for keeping your processor cool. The brackets only fit on nocrua coolers, so if you have any other cooler youll meed their specific brackets in order for this to work.
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R. Gorley
> 3 dayLove this product. Easy install and super quiet. No issues at all!
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Migue Ángel
04-06-2025Lo conseguí para un cooler alseye, al tener menos longitud el cable hizo más fácil la instalación, además del splitter en Y se le nota de muy buena calidad
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Chelsea Ayaya
> 3 dayThis was really easy to install and mounted on to my Noctua D15s fan easily! Helped reduce temperatures of my cpu about 1-3 degrees which was nice. Highly recommend this one!
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Analog Cabin
> 3 dayMounts great to NH-D15 if memory slot issues cause a 140mm fan to be too big. In my case I could not get the door of my PC installed because the 140 was to tall. This 120mm allowed to to install the case door.
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Ben
> 3 dayThe Hype is real! Noctua products bring exceptional quality with low noise and dependable cooling! However, the size of the 120 mm fan is bigger than you may think. I’d recommend measuring clearances before buying them.
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Eli Gutzmer
> 3 dayThis cooler in combination with the 2nd fan upgrade kit dropped my CPU temps from almost 80 degrees to 55 at most under high stress. They have been absolutely amazing and rarely even need to go above half of their potential RPM making my system as a whole way quieter than it was before. Not to mention the price for what youre getting if you do take the bundle, definitely worth the price, no more stutters no more hot CPU wonderful product
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Iván Lopez
> 3 dayPerfecto para el procesador 5600x y 5800x. La marca ofrece mucha información para seleccionar de forma correcta el sistema de refrigeración adeacudo para el eso que se le va a dar al procesador.
The NA-FK1 is a second fan kit for the NH-U12S redux CPU cooler. Upgrading it to a push/pull-style dual-fan setup makes it possible to further improve cooling performance or to reduce noise levels by having two fans running at lower speeds. The kit includes a second NF-P12 redux-1700 PWM fan, anti-vibration pads, fan mounting clips, a 4-pin PWM y-cable as well as two Low-Noise Adaptors – everything you need to boost the efficiency of your NH-U12S redux!
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Enhanced cooling performanceAdding a second NF-P12 redux-1700 PWM fan to the NH-U12S redux makes it possible to further improve cooling performance by around 1-3°C, depending on the application. As a rule of thumb, the gains are bigger the higher the heat load, so the NA-FK1 is particularly attractive for higher-end CPUs, extensive turbo use or overclocking. |
NF-P12 redux-1700 PWMThe NF-P12 redux-1700 PWM fan included with the NA-FK1 is the same high-quality unit that comes pre-installed on the NH-U12S redux CPU cooler, so it’s a perfect match for a push/pull-style dual-fan setup. Supporting PWM for automatic speed control, it can run near silent most of the time and provide massive performance when necessary. |
Lower noise levels and acoustic fine-tuningThe NA-FK1 can not only be used to enhance cooling performance, but also to lower noise levels: by letting both fans run at reduced speeds, either via automatic PWM control using the supplied y-cable or via the included Low-Noise Adaptors, the NH-U12S redux can operate more quietly while maintaining the same level of performance. |
Specifications
Scope of delivery
- NF-P12 redux-1700 PWM fan
- 4x NA-AVP2 grey anti-vibration pads
- Fan mounting clips (one pair)
- NA-YC1 4-pin PWM y-cable
- 2x NA-RC14 Low-Noise Adaptor (L.N.A)
Connector & pin-configuration
4-pin PWM
Renowned Noctua quality
Noctua products are renowned for their impeccable quality and outstanding longevity. True to this legacy, the NF-P12 redux unit that comes with the NA-FK1 set features an MTTF rating of more than 150,000 hours.