Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)

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Product Dimensions 12L x 12W x 2.5H Centimetres
Brand Noctua
Power connector type 4-Pin
Voltage 12 Volts
Cooling method Air
Compatible devices Desktop
Noise level 22.6 dB
Material Sterrox® LCP
Maximum rotational speed 2000 RPM
Air flow capacity 102.1 CMPH

About this item

  • Premium quiet fan, 120x120x25mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.6 dB(A), >150,000 h MTTF
  • Next-gen A-series design combines high airflow and high static pressure performance, ideal both as a case fan and for CPU coolers, watercooling radiators and AIO liquid cooling systems
  • State-of-the-art engineering (AAO frame, Flow Acceleration Channels, record tight 0.5mm tip clearance) and construction (Sterrox LCP material, metal-reinforced hub, metal bearing shell, etc.)
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 2000rpm maximum speed (1700rpm with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, radiator gasket, fan screws, extension cable and y-cable for running two PWM fans on the same header

Product details

  • Batteries ‏ : ‎ 1 Unknown batteries required.
  • Is discontinued by manufacturer ‏ : ‎ No
  • Language ‏ : ‎ English
  • Product Dimensions ‏ : ‎ 12 x 12 x 2.5 cm; 360 g
  • Date First Available ‏ : ‎ May 2 2018
  • Manufacturer ‏ : ‎ Noctua
  • Place of Business ‏ : ‎ Clarksville, Tennessee 37043,US
  • ASIN ‏ : ‎ B07C5VG64V
  • Item model number ‏ : ‎ NF-A12x25PWM
  • Country of origin ‏ : ‎ Taiwan
  • Customer Reviews:

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Product Description

pwm

The NF-A12x25 is a highly optimised next-generation 120mm fan that integrates Noctua’s latest innovations in aerodynamic engineering in order to achieve an unprecedented level of quiet cooling performance. It takes state-of-the-art technologies such as the AAO (Advanced Acoustic Optimisation) frame or Flow Acceleration Channelsand combines them with a record tight tip clearance of only 0.5mm, which is made possible by using the novel Sterrox liquid-crystal polymer (LCP) compound as well as a metal-reinforced motor hub and axis for ultimate precision. Following the approach of Noctua’s A-series, the NF-A12x25 is a true all-rounder that yields superb results in all types of usage, regardless of whether it’s in low-impedance, airflow-oriented applications such as case cooling, or high-impedance, pressure-demanding scenarios such as on heatsinks and watercooling radiators. The 4-pin PWM version supports fully automatic speed control via PWM fan headers and comes with a Low-Noise Adaptor to reduce the maximum speed from 2000 to 1700rpm. Topped off with exceptional running smoothness, Noctua’s reference-class SSO2 bearing and a rich bundle of accessories, the NF-A12x25 is a premium-quality product through and through. Its superior efficiency, cutting-edge construction and pioneering materials make it an elite choice for the most discerning demands.

a12

Next-generation performance

Noctua’s 120mm fans such as the NF-F12 and NF-S12A are renowned as being among the best on the market and have received more than 400 awards and recommendations from the international press. With its further improved efficiency and novel, state-of-the-art engineering, the NF-A12x25 represents another step up in performance and manufacturing.

a12

tip

hub

pwm

Sterrox liquid-crystal polymer compound

The NF-A12x25’s impeller is made from Noctua’s novel Sterrox liquid-crystal polymer (LCP) compound that features extreme tensile strength, an exceptionally low thermal expansion coefficient and damping characteristics that are ideal for reducing resonance and vibration phenomena in advanced fan-blade designs.

Ultra-tight tip clearance

The NF-A12x25 has a record tight tip clearance (distance between the blade tips and the inside of the frame) of only 0.5mm. This highly ambitious design sets a new benchmark for 120mm fans and helps the NF-A12x25 to work more efficiently against back pressure, such as on heatsinks or radiators, by reducing leak flows through the gap between impeller and frame.

Metal-reinforced motor hub

The centrepiece of the NF-A12x25’s motor hub is made entirely from steel and the axle mount is reinforced with an additional brass structure. In combination, both measures ensure ultimate precision and increased stability in the critical hub area.

Scope of delivery

  • NA-RC14 Low-Noise Adaptor (L.N.A)
  • NA-YC1 4-pin PWM y-cable
  • NA-EC1 30cm extension cable
  • 4x NA-AV2 anti-vibration mounts
  • NA-AVG1 anti-vibration gasket for water cooling radiators
  • Fan screws

a12x25

Highly optimised P/Q curve for all applications

The NF-A12x25’s sophisticated aerodynamic design allows for a pressure to airflow (P/Q) curve that is extremely strong in the critical mid-section. This means that the NF-A12x25 offers excellent performance in both static pressure demanding and airflow demanding applications.

pwm flx uln 5v 5v NF-A12x25 PWM chromax.black.swap
NF-A12x25 PWM NF-A12x25 FLX NF-A12x25 ULN NF-A12x25 5V PWM NF-A12x25 5V NF-A12x25 PWM chromax.black.swap
Customer Reviews
4.7 out of 5 stars
6,485
4.7 out of 5 stars
574
4.7 out of 5 stars
321
4.8 out of 5 stars
401
4.7 out of 5 stars
194
4.7 out of 5 stars
2,140
Voltage 12 V 12 V 12 V 5 V 5 V 12 V
Connector 4-pin PWM 3-pin 3-pin 4-pin PWM 3-pin 4-pin PWM
RPM Max: 2000 / Min: 450 2000 1200 Max: 1900 / Min: 450 1900 Max: 2000 / Min: 450
RPM with L.N.A. 1700 1700 900 - - -
RPM with U.L.N.A. - 1350 - - - -
Acoustical Noise 22,6 dB(A) 22,6 dB(A) 12,1 dB(A) 21,4 dB(A) 21,4 dB(A) 22,6 dB(A)
Acoustical Noise with L.N.A. 18,8 dB(A) 18,8 dB(A) 7,6 dB(A) - - -
Acoustical Noise with U.L.N.A. - 14,2 dB(A) - - - -
Size 120x120x25mm 120x120x25mm 120x120x25mm 120x120x25mm 120x120x25mm 120x120x25
Colour Brown & Beige Brown & Beige Brown & Beige Brown & Beige Brown & Beige Black with swappable coloured anti-vibration pads

Looking for specific info?

Customer reviews

4.7 out of 5 stars
4.7 out of 5
6,485 global ratings
Do not let the colors sway you these are TRULY the best fans you can buy!
5 Stars
Do not let the colors sway you these are TRULY the best fans you can buy!
I purchased these fans for my brother. He started with two, swapping out the ones he had for a couple of years. Then he bought two more.Although on the pricey side, let me tell you that the quality is truly premium. They are heavier, solid, and pictures online do not do them justice if you must know. The colors might make you feel you are getting something retro made in the 80s, however- these are far from that acid plastic used back then. The corners are brown silicone, the fan looks like carbon fibre (I have not read the details on materials), it looks like it, and its just so solid overall. Compared to the rinky dink fans he had previously (Arctic), these are like a Rolls Royce.The packaging is also premium. Attention to detail in all manners. They specialize in fans for a reason. You can tell, they take pride in making their products.I understand what all the fuss is about, with thousands of 5 star ratings online.Installation was easy, and the temperature dropped about 5 degrees. I will double check if it is not 7 degrees cooler. It is MIND BLOWING how silent they run, and how overall my entire tower is so quiet and cooler. We both come from an era in the 90s where towers were loud.If you are a gamer, or need high-performance cooling because you are running software, I highly recommend these. Don't try to save here. Just get these fans and you will not regret it. Peace of mind is priceless and so is quality!
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Top reviews from Canada

Reviewed in Canada on May 6, 2024
Verified Purchase
Modified a Corsair AIO with this fan. Great product, quality evident. Includes rubber mounts and gasket for AIO application. Very quiet. AMD 5 CPU runs cool. Highly recommended!

Since I purchased this fan, Noctua has released a low-profile cooler for ITX applications.
Reviewed in Canada on November 6, 2020
Verified Purchase
I purchased these fans for my brother. He started with two, swapping out the ones he had for a couple of years. Then he bought two more.
Although on the pricey side, let me tell you that the quality is truly premium. They are heavier, solid, and pictures online do not do them justice if you must know. The colors might make you feel you are getting something retro made in the 80s, however- these are far from that acid plastic used back then. The corners are brown silicone, the fan looks like carbon fibre (I have not read the details on materials), it looks like it, and its just so solid overall. Compared to the rinky dink fans he had previously (Arctic), these are like a Rolls Royce.
The packaging is also premium. Attention to detail in all manners. They specialize in fans for a reason. You can tell, they take pride in making their products.
I understand what all the fuss is about, with thousands of 5 star ratings online.
Installation was easy, and the temperature dropped about 5 degrees. I will double check if it is not 7 degrees cooler. It is MIND BLOWING how silent they run, and how overall my entire tower is so quiet and cooler. We both come from an era in the 90s where towers were loud.
If you are a gamer, or need high-performance cooling because you are running software, I highly recommend these. Don't try to save here. Just get these fans and you will not regret it. Peace of mind is priceless and so is quality!
Customer image
5.0 out of 5 stars Do not let the colors sway you these are TRULY the best fans you can buy!
Reviewed in Canada on November 6, 2020
I purchased these fans for my brother. He started with two, swapping out the ones he had for a couple of years. Then he bought two more.
Although on the pricey side, let me tell you that the quality is truly premium. They are heavier, solid, and pictures online do not do them justice if you must know. The colors might make you feel you are getting something retro made in the 80s, however- these are far from that acid plastic used back then. The corners are brown silicone, the fan looks like carbon fibre (I have not read the details on materials), it looks like it, and its just so solid overall. Compared to the rinky dink fans he had previously (Arctic), these are like a Rolls Royce.
The packaging is also premium. Attention to detail in all manners. They specialize in fans for a reason. You can tell, they take pride in making their products.
I understand what all the fuss is about, with thousands of 5 star ratings online.
Installation was easy, and the temperature dropped about 5 degrees. I will double check if it is not 7 degrees cooler. It is MIND BLOWING how silent they run, and how overall my entire tower is so quiet and cooler. We both come from an era in the 90s where towers were loud.
If you are a gamer, or need high-performance cooling because you are running software, I highly recommend these. Don't try to save here. Just get these fans and you will not regret it. Peace of mind is priceless and so is quality!
Images in this review
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10 people found this helpful
Report
Reviewed in Canada on February 13, 2024
Verified Purchase
Yes the price is high but these things cannot be beat. Build quality, acoustics...you know what you are getting with Noctua. I have 3 of these on a radiator to replace the loud stock fans my AIO came with.

I liked the rubber frames that came with it...no air leaks and it all goes to the radiator.
Reviewed in Canada on February 12, 2024
Verified Purchase
Installed on an ant miner s17 pro bitcoin miner. the 4 pin connectors would not fit the sloton the miner, I just filed off the extra white plastic slot and was good to go. Major difference in volume, much quieter now. Im impressed. it also comes with extension cables if you need them. and a rubber gasket that makes sure there are no air leaks and the efficiency of the fan cooling is very good
Reviewed in Canada on August 30, 2018
Verified Purchase
Got these to use as case fans. 3 of them on the front as intake on a Corsair Obsidian 500D case (new version) Forgot 4th one for exhaust, but amazon doesn't have them on stock right now (the provider I trust with). These are my thoughts and experiences:

- Very solid, well made materials.
- Best thing ever: extremely flexible and soft cables. Makes your cable management very easy and they don't feel like they would break at all because of the flexibility or softness.
- They provide all the necessary accesories and cables for whatever it is you want to do with them. You can switch them around in the future for other uses like heatsink fan, liquid cooling radiator fan or case fan. No need to waste money for specific fan type.
- I'm running all 3 of them at max RPM and they are still quiet (compared to the corsair and nzxt fans I've owned)
- Got them all 3 with the Noctua NA-FC1 fan control, all cables provided from the NA-FC1 to connect to one single motherboard case fan which is convenient.
- Performance: Excellent static pressure and airflow performance. Will not disappoint you at all
5 people found this helpful
Report
Reviewed in Canada on June 23, 2024
Verified Purchase
Easy to install - instruction manual is clear and easy to follow.

If you're using the screws, put them in first to prime the screw holes! It'll take moment for each screw, but it'll make it easier (and quicker) to put them into the case afterwards.

The extension cords made it easy to combine multiple fans onto one header. Be sure to read the labels - one wire is an extender, the other is the low noise wire. (Last one is a Y extender for multiple fans. Easy to zip tie once you're done!)
Reviewed in Canada on December 29, 2022
Verified Purchase
This was the first case fan I installed into a computer and it was good enough. I have a recased Z440 here with its stock tower cooler and fan and this as the case fan. I also previously used other Noctua examples as supplementary case fans but I had to remove them (and the SAS card they were supporting with airflow) due to instability and cavitation which was unpleasant and likely shortened the life of those fans.

I would recommend this to a friend building a computer for the first time. It is reasonably quiet (I must assume my tower cooler is louder, but it too is pleasantly quiet even sped up) and it moves air. Noctua is a known quantity in the space and I don't feel like I am being treated like I'm mindless by the marketing.
Reviewed in Canada on April 20, 2024
Verified Purchase
Silent is what I wanted and I got it. Worth the price

Top reviews from other countries

Mário da Silva
5.0 out of 5 stars Worth every cent
Reviewed in the United States on June 20, 2024
Verified Purchase
Bought a year ago, still going strong! Makes almost no noise and keeps my PC cool.
Theo
5.0 out of 5 stars Erg stil
Reviewed in the Netherlands on June 2, 2024
Verified Purchase
Deze robuuste ventilator geeft met het maximale toerental van 1200rpm een minimaal zoem-geluid.
Met de los verkrijgbare NC-FC1 toerentalregeling kun je het toerental terugregelen en hoor je echt helemaal niks meer terwijl de ventilator nog voldoende lucht verplaatst.
Niet twijfelen, dit is een top ventilator!
Severino C.
5.0 out of 5 stars Costosa ma eccezionale!
Reviewed in Italy on May 31, 2024
Verified Purchase
Che dire? E' la regina delle ventole: e' una Noctua! Assolutamente inudibile a bassi giri e comunque silenziosa al massimo, nonostante faccia molta aria. Qualita' dei materiali, ingegnerizzazione e controllo qualita' eccezionali! Certo e' costosa ma la qualita' almeno c'e', eccome!!
The Calmar
5.0 out of 5 stars Le meilleur
Reviewed in France on May 19, 2024
Verified Purchase
J'en ai acheté deux pour mon pc preconstruit.

Vraiment, ils font toute la différence, quasi pas de bruit même en charge et refroidissement exceptionnel !

Le prix peut faire un peu élevé, mais ils vaut largement le coup !

Je recommande à 1000%!
Esc
5.0 out of 5 stars QUIET & efficient!
Reviewed in Poland on May 15, 2024
Verified Purchase
Simply - there is no better 12x25 fan out there.
It is pure silence and quality.