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Noctua NF-A12x25 FLX, High-Performance Quiet Fan 120mm

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Availability: In Stock.
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Arrives Saturday, Oct 24
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Size: 120x120x25 mm


Features

  • Premium quiet fan, 120x120x25mm, 12V, 3-pin Molex, 2000/1700/1350 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.)
  • 3-pin FLX version provides 2000/1700/1350rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
  • Includes anti-vibration mounts, radiator gasket, fan screws, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply

Description

Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality. 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 Channels and 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 3-pin FLX version provides 2000/1700/1350rpm speed settings via the supplied Low-Noise Adaptors so as to give full flexibility in configuring the fan for maximum cooling capacity or near-silent acoustics. 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. 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. 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. 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. 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. 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.

Product Dimensions: 0.98"L x 4.72"W x 4.72"H


Brand: Noctua


Power Connector Type: 3-Pin


Voltage: 12 volts


Wattage: 1.68 watts


Cooling Method: Air


Compatible Devices: Desktop


Noise Level: 22.6 db


Material: Sterrox® LCP


Maximum Rotational Speed: 2000 rpm


Power Connector Type: 3-Pin


Voltage: 12 volts


Wattage: 1.68 watts


Cooling Method: Air


Compatible Devices: Desktop


Noise Level: 22.6 db


Maximum Rotational Speed: 2000 rpm


Item Dimensions L x W x H: 0.98"L x 4.72"W x 4.72"H


Material Type: Sterrox® LCP


Brand Name: Noctua


Item Highlight: High Airflow & Static Pressure Low Noise 25mm Thick Fan for Heatsinks and Radiators, 3 Speed Settings 2000/1700/1350rpm 3-Pin


UPC: 841501110382


Global Trade Identification Number: 89


Warranty Description: 6 year manufacturer’s warranty


Number of Packs: 1


Manufacturer: Noctua


Number of Items: 1


Unit Count: 1 Count


Included Components: 1 Piece


Item Type Name: Air Cooling Noctua NF-A12x25 FLX Fan - 120 mm


Item Weight: 0.36 kg


Model: NF-A12x25 FLX


Part Number: NF-A12x25 FLX


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • The best fans I have ever seen
Size: 120x120x25 mm
These are amazing. Even at top speed, they are very low noise, they install as fast as you are with a screwdriver (faster if you use the noise dampening connectors), they are super high quality, and the gasket works perfectly. My cpu is a liquid cooled and I have 2 of these in a push-pull configuration on the radiator and now the cpu temperature maxes out with a max load and max overclocking ten degrees C lower and the temperature overall is lower and drops much faster than with the previous fans that were actually pretty good. Airflow through the radiator is amazing. These fans and the 4 pin pwm version of the same physical configuration are the best I have ever seen in decades of working with computers when it comes to radiators and air cooling heatsinks. I have already ordered more for use in other systems and to blow air out of the tower itself (my system doesn't have a powered intake for some reason, but I would use these for that too, if I could). I actually like the colors and look of these, I know that the general opinion is that they look ugly, but they look pretty good to me in my system. There are tons of ways to attach them both physically and electrically. So you can connect them directly to the motherboard or pci card via 3 pin connector or directly to the power supply. So you can actually use as many as you want, creating new intakes and outputs in the case and/or for duct channels as the power supply connection can be chained with as many fans as you can power. They do cost more than usual, but they are absolutely worth it. They will last forever. I have had very good fans in the past and they have never had the six year warranty that these have. They also do not have the travel between the rotor and the stator base that other fans have, which is a good indicator of the longevity of almost any device. And the cable attachments to lower the top speed of these fans are nice to have, but these fans are so quiet that I can have them permanently running at top speed without any problems. I have both light and sound sensitivities and these fans aren't a problem for that at all. I also have chronic migraines and I can leave my computer running during them because they are so quiet. I really can't say enough about how much I love these things ... show more
Reviewed in the United States on June 30, 2020 by Dave

  • A masterpiece, I rarely am impressed to this extent
Size: 120x120x25 mm
premium build quality, premium packaging, sound? I added this one as a rear fan and it's like I've added nothing whatsoever in terms of noise, had a pretty easy time setting this thing up, a bit tough with the included rubber mounts but it's so worth it And for the big part, as a single rear fan on my TD500 white mesh case this had like 4-5 C° decrease in temps when multitasking & while playing games (full load) to both the cpu and gpu which is pretty drastic for a one fan The only cons I'd consider which are pretty minor and subjective are the color options, (tho it went well with my white case) , and the pricing - which is to be expected at this build quality and performance ... show more
Reviewed in the United States on April 1, 2021 by Man

  • Quiet and huge improvement
Size: 120x120x25 mm
I don’t have a gaming pc but a little desktop, and it only has 1 fan. It kept getting incredibly hot with the original fan. I installed this one and it’s been a world of difference. Not only much quieter but also a lot cooler! Never hitting above 60 C Awesome product! I love it!!
Reviewed in the United States on February 11, 2024 by Amazoncustomer

  • Quiet and effective fan for water cooled CPUs
Size: 120x120x25 mm
I read about these fans and thought that I would plunk down the cash to try one. Well, color me surprised and satisfied! I had purchased an Arctic Cooling Liquid Freezer 120 for my new Ryzen 2 2600X. The stock fans were mostly quiet except at full speed (1500 RPM) you could hear them. This Noctua fan is as quiet at 2000 RPM as the Arctic Cooling fans at 1500 RPM! I put this Noctua fan on the radiator to push and left the stock Arctic on the other side to pull and my CPU temps dropped 3 degrees Celsius by just changing the fan out! This is a very well designed fan with lots of accessories included in the box. I was always hesitant to buy Noctua fans due to the higher costs, but this fan is worth it in my opinion. ... show more
Reviewed in the United States on June 30, 2018 by N Wieling

  • they are the best 120mm fans money can buy
Size: 120x120x25 mm
Yes, these fans are expensive. However, they are the best 120mm fans money can buy. They are quieter at 1500 RPM than most 120mm fans are at 1000. They have excellent static pressure performance, so they work exceptionally well on water cooling radiators. If money isn't an issue, and you just want the best of everything, I recommend these fans. If value-for-money is a concern, though, I'd recommend looking at fans closer to $10 or $15. ... show more
Reviewed in the United States on June 26, 2018 by Amazon Customer

  • great fan
Size: 120x120x25 mm
great fan, i use it with my water cooler radidator. temps are down -15c and its very quiet
Reviewed in the United States on January 5, 2024 by Amazon Customer

  • amazing fan
Size: 120x120x25 mm
these fans will blow away anything literally. they have amazing air flow and a tremendous amount of static pressure for a fan that moves a lot of air. they work great on a radiator which is a plus. i currently have them as my intake while i have 15mm versions of the fans as exhaust with a 360mm radiator. my gpu temps dont go above 70 anymore fans 100% intake 65-68 degrees, 75% speed 67-69, 50% 68-70 avg 69. they make a much larger difference than any other fan ive used in this case. when they ramp up you dont hear the whine like you do most fans, what you hear on these is basically air moving rapidly. i spent an arm and leg on a set of fans but the 6 year warranty 150,000k hours of use which is insane theyre worth the money. ... show more
Reviewed in the United States on August 1, 2020 by Wade Epperson

  • Strong airflow without too much noise, though awfully pricey
Size: 120x120x25 mm
I have never "liked" Noctua fans until this one. Not because they're ugly and not because I don't believe that they're very well made and will last forever, but because I never thought I got enough air flow for the cost and noise. I realize there are very high-speed ones, but I don't need that. I built a few computers years ago using Corsair 600T cases, which I thought were great, as I like using a number of slower-running fans to using fewer, faster fans, and the 600T was nothing if not generous with fan space. (I thought the Cooler Master Excalibur fans were great, but they didn't sell well and I am apparently one of about 3 people who liked them. Having said that, I have 7 of them running a 2/3 speed in a 10-year-old computer and they still run just fine.) However, I just built a new computer, Excaliburs are long since unavailable, and I'm very sensitive to fans that "whine", even if they're not loud. I decided to try one of these and I really like this one. At full speed it's not quiet, but it moves significant air, and the noise has that "white noise" quality of not being noticeable until it stops. I hate paying $30 each, but if that's what it takes, I'm all in since my new case doesn't allow many slower, cheaper fans. Oh, and I do like very much that Noctua provides those long thin screw-replacement thingies as they are a delight to use when the placement allows it. ... show more
Reviewed in the United States on August 14, 2021 by Frobisher

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