Noctua NA-FK1 Redux, Second Fan Upgrade Kit for NH-U12S Redux Cooler

(405 Reviews)

Price
$10.17

Quantity
(10000 available )

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62 Ratings
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Reviews
  • Diego Alejandro pinzon londoño

    > 3 day

    Los accesorios de este noctua pueden ser compatibles con el noctua nh d15

  • zura

    Greater than one week

    best quality. Works greats. No issues.

  • matthew

    Greater than one week

    I am using the Noctua NH-U12S Redux on a Ryzen 5 5600 overclocked to 4.65ghz. Running Cinebench R23 at full load I was topping off at 81-82c before adding this second fan and now under full load running the same test, I max out at 76-77c. Thats a 5-degree drop for only $18.18 with tax.

  • Migue Ángel

    > 3 day

    Lo 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

  • Ben

    > 3 day

    The 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.

  • Erndawg

    > 3 day

    Very happy with purchase. Love the Noctua products. Great and reliable products. In the last 3 years, I have only purchased Noctua fans and CPU coolers on all of my builds..

  • Andres Castro

    > 3 day

    Excelente ventilador de 120mm para noctua nh-u12s redux

  • Chase K

    > 3 day

    This fan drops my Temps about 3 C with the Redux cooler but the package was damaged luckily the fan and accessories had taken no damage.

  • paranor

    > 3 day

    Dropped my temperatures a further 4 degrees Celsius compared to my single fan unit. Highly recommend

  • Vicente Fierro

    14-06-2025

    Muy buen producto, llego a tiempo, lo ocupo con un i5 11400 que suele ser un procesador muy caliente y las temperaturas no pasan los 50°c y mientras no se ocupa sus temperaturas bajan hasta 20°c lo cual ed genial, recomiendo ocupar una configuracion de 2 ventiladores con el kit extra para una refrigeracion mas eficaz y menos ruidosa.

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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 performance

Adding 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 PWM

The 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-tuning

The 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.

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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

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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.

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