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Noctua

Noctua NF-A9 PWM, High-Performance Quiet Fan 92mm

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Availability: In Stock.
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Arrives Oct 15 – Oct 16
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Features

  • Premium quiet fan, 92x92x25 mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.8 dB(A), >150,000 h MTTF
  • Award-winning 92x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • Ideal for 9cm CPU coolers (e.g. Noctua NH-U9(S) & NH-D9L series), compact PC cases (HTPC, ITX, Small Form Factor), replacement fan for NAS and other devices, etc.
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 400-2000rpm speed range (1550rpm max. with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header

Description

Noctua's premium cooling components are internationally renowned for their superb quietness, exceptional performance and quality. The NF-A9 is a highly optimised, premium quality quiet 92mm fan. Featuring Noctua’s AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 further improves the renowned quiet cooling performance of the award-winning NF-B9. The PWM version sports Noctua’s custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2000 to 1550rpm. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands. Noctua's AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua's proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan's performance/noise efficiency. The NF-A9 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise. The NF-A9 features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems. With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.

Product Dimensions: 3.62"L x 0.98"W x 3.62"H


Brand: Noctua


Power Connector Type: 4-Pin


Voltage: 12 volts


Cooling Method: Air


Compatible Devices: Desktop


Noise Level: 22.8 db


Material: Fibre-glass reinforced PBT


Maximum Rotational Speed: 2000 rpm


Item Highlight: High Airflow, Low Noise, 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2000rpm 4-Pin PWM See more


Power Connector Type: 4-Pin


Voltage: 12 volts


Cooling Method: Air


Compatible Devices: Desktop


Noise Level: 22.8 db


Maximum Rotational Speed: 2000 rpm


Item Dimensions L x W x H: 3.62"L x 0.98"W x 3.62"H


Material Type: Fibre-glass reinforced PBT


Brand Name: Noctua


Item Highlight: High Airflow, Low Noise, 25mm Thick Fan, for PC and Electronics Cooling, Rich Accessory Kit, 2000rpm 4-Pin PWM


UPC: 842431014481 731215275791


Global Trade Identification Number: 35, 13


Warranty Description: 6 year manufacturer’s warranty


Number of Packs: 1


Manufacturer: Noctua


Number of Items: 1


Unit Count: 1 Count


Item Weight: 8 ounces


Model: NF-A9 PWM


Part Number: NF-A9 PWM


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 15 – Oct 16

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

    • Best 92mm fan on the market
The Noctua NF-A9 PWM (92mm, 4-pin) is one of those components that quietly justifies its premium price — literally and figuratively.I've used several Noctua fans over the years, and this 92mm PWM model continues the brand's reputation for exceptional build quality and acoustic performance. At max 2000 RPM it pushes a solid amount of air (around 78.9 m³/h), yet the noise tops out at just 22.8 dB(A) — in practice, it's barely audible even in a near-silent room unless you put your ear right next to the case. With the included Low-Noise Adaptor plugged in, it becomes whisper-quiet while still providing perfectly adequate cooling for most 92mm applications.What stands out:The PWM control is smooth and responsive; the fan ramps up/down almost imperceptibly as temps change. Flow Acceleration Channels and the AAO (Advanced Acoustic Optimisation) frame genuinely reduce turbulence noise compared to generic fans. Comes with a generous accessory kit: anti-vibration mounts (the classic brown grommets), extension cable, Y-splitter for daisy-chaining two fans on one header, screws, and the LNA adaptor. Build feels rock-solid — fibre-glass reinforced PBT blades, SSO2 bearing, and Noctua's legendary >150,000-hour MTTF rating give real confidence it'll outlast most other PC parts. ... show more
Reviewed in the United States on January 22, 2026 by Guy South
    • Good little fan and worth the extra price. Quiet and lasts forever
Bought this to replace the broken stock fan in my UGREEN NAS DXP2800 and it ended up being a perfect drop‑in upgrade. Noise level: At typical NAS fan curves it’s basically whisper quiet, even sitting on a desk a few feet away. Cooling: Despite the low noise, it moves enough air that my drive and system temps stayed the same or slightly improved compared to the original fan. Cable length: The included cable is long enough to route cleanly inside the NAS without needing an extension or weird bends. Mountability: Standard 92mm mounting holes lined right up; swap took a few minutes with just a screwdriver and no mods needed. Speed and airflow: PWM control works as expected, ramps smoothly under load, and at higher RPMs you get noticeably stronger airflow without a huge jump in noise. Overall, if you’re looking for a reliable, quiet replacement fan for a small NAS or SFF build, this one is worth paying a bit extra for. ... show more
Reviewed in the United States on January 5, 2026 by RA Deleon
    • Among the best case fans on the market.
High quality and very quiet. Easy to install and comes with all mounting hardware and extra cables. They have been very reliable with no problems whatsoever. A great value for your money!
Reviewed in the United States on June 20, 2026 by John Jones
    • Simply amazing and super quiet
Got an inverter charger and it has a stupid loud fan and this saved the ears in my office . Silence and serenity ! I even used two fans instead of the oem one jet ! And still whisper quiet .
Reviewed in the United States on May 15, 2026 by Tonyp
    • Great Kraken G12 Replacement
I have many Noctua fans. Right away I knew this was a lot better just by the opening the box I could feel the difference in build quality and weight when compared to the Kraken G12 stock fan. I do not think it was necessary to replace the stock fan but I like having piece of mind. RPM is a lot higher than stock and although I know it is not very scientific to say this but just using my hand to feel hoh much air is being pushed was very apparent that the Noctua fan pushes 2 or 3 times as much air as the stock fan even at the same noise level. at 1500 rpm the stock fan maxes out and feels pretty weak but is silent. The Noctua at that same speed pushes a lot more air and is barely audible. At full speed it is highly audible so set your fan curve accordingly. The full speed noise is not annoying but it is there. You get all the usual accessories, extension, splitter, LNA, etc. I use splitters in my build and for me the accessories included give great value and you get a quality fan. Most of my Noctuas were made in China including this one and I dont see any performance difference compared to ones from taiwan. ... show more
Reviewed in the United States on April 30, 2020 by Charles
    • Noticeable Noise Reduction
Review Image by The Student
I bought a 92mm and 80mm Noctua case fan and so far it really made a difference in terms of noise reduction. I switch Noctua fan with my old one and i thought my PC died on start up because of the sudden drop of noise after 1-2 second of starting up. I can actually hear what is happening inside my PC now due to the fan being almost dead silent. It feels very weird because i never had a Desktop PC this quiet before. The Installation was easy and straight forward. It still comes in a nice looking box. The fan comes with a cable attach, also comes with an extension cord if you need the extra length, the noise reduction cord which i used for both of the fans and really made a huge difference. Along with a few other things. There was no instruction manual (maybe there was) but that was not needed. All you do is plug the fan cord into the noise reduction cord if you want to use it and then plug that into the 4 pin fan slot on the motherboard. Everything should fit together nicely, not much force is needed plugging things together. It comes with 4 screws, use a screw driver to mount the fans in place. This is not really a problem but as people know the color of fans really does not match with everything else. But i don't really look at my CPU so it not a problem for me it. They do have black now or starting to sell black color Noctua Fans. My gaming rig is not big size so these fans handle it fine. The box says a 6 year warranty so that is a plus. Overall i am very impress with the presentation and the quality. It made me want to write a review for it. The CPU noise compare to before these fans is night and day. I never realized how long my CPU noise was before using these fans. Of course this is the first day i am using them as i am writing this review so take it for what you will. Hopefully these fans will last me a good few years at minimum. ... show more
Reviewed in the United States on December 25, 2019 by The Student
    • A great fan with nice accessories included, albeit a bit pricey
I set out to make a "nearly" silent PC, in that I didn't want to go fanless, but I wanted it to have the fans running so slowly (or off) during normal operation that it was silent, and it was only during intensive activities that the fans would ramp up. Through that process I ended up using 5 different fan models from 3 different companies,including this NF-A9. Long story short, I prefer NF-Bx line from Noctua as my favorite and the best value. These NF-Ax series fans are slightly better, but not so much more so to justify the 50% (or so) increase in cost unless you need the vibration free mounting hardware it comes with. (The "B" series doesn't come with that nor with the extra extension and splitter cables the "A" series does.) Some cost saving advice: don't buy a Noctua CPU cooler. Buy a Cooler Master CPU cooler (I went with the Hyper T2 as it is the biggest one that fits in a standard case) and take off the Cooler Master fan and buy one a Noctua fan. For ~$27 combined you get what Noctua wants to charge $60 for. The Cooler Master fan sucks and doesn't allow you to reduce the fan speed below ~30%, so it needs to be replaced if you want to go silent, but the Noctua NF-B9 is exactly the same size fan and it is easy to replace it once you realize you can pull off the rubber pads that obscure the fan screws. Another learning, don't trust that the fan controller on your motherboard is doing everything as it should. First, I had to go into bios and change it to PWM mode as it assumed DC mode for the system fans even though it comes with 4-pin fan headers (DC mode doesn't allow it to spin at nearly as low of a speed). Next, it appeared when I was first testing the B series fan that the lowest it could go in PWM mode is 13% based on the RPM data the motherboard was providing. But then I noticed the fan was still spinning when I put the PWM at 10%, so I figured the fan wasn't providing good RPM data below 13%. (I later noticed that the A series would show RPMs down to 10%, further giving credence to that idea.) Next I noticed it would stop spinning below 10% (both A and B series), so I assumed that was the lowest the fan would go. Not so on either count! I later hooked up the NF-B9 fan to my GPU and it could both spin the fan and read its speed as low as 5% PWM (never tried with the A series fan, but I assume it could go slower too). So apparently my motherboard has it's limits that it won't go below. For all I know, the fan could go even lower than 5%, but that's the best the GPU fan controller will do. (Luckily, even 13% is slow enough to be silent in almost all scenarios.) But the long and short of it, is that with 4 of the Noctua fans (A9 on the CPU, 2x B9 on GPU and 1 B9 on the rear of the case) and leaving the front of the case fan off unless the system gets hot (trying to save a few bucks and not replace the 12" fan unless I need to) as well as an EVGA gold power supply in "eco mode" I have a truly silent PC, where a pretty sensitive dB meter can not detect it being on. I have to do the test in the middle of the night, because even cars going by outside are detectable. But at 3 AM, it reads 21.1 dB with the PC off and 21.1 dB with it on. My stomach gurgles and the stupid thing goes up to 24 dB or I click the mouse and it goes up to over 30 dB so trust me when I say the dB meter is sensitive enough to detect pretty small readings. To be fair and give a caveat, to keep it silent, the fans are running at 13% on the rear of the case, 10% on the CPU and 5% on the GPU. But that's just enough air flow with the good heatsinks that in normal operation the system temp stays around 40 and both the CPU temp and GPU temps stay in the mid 50's. Build details: Intel Core i3-8100 CPU MSI Z370M Mortar motherboard Gigabyte GTX 1050 Ti "Windforce OC" GPU (Note: Gigabyte is the only vendor with a good fan controller on their 1050 GPU. The other companies have junk 2-pin fans.) 2 of 4 GB DDR4 2400 Kingston Fury DIMMs Samsung 960 EVO M.2 SSD EVGA 650 GQ PSU in eco mode ... show more
Reviewed in the United States on April 19, 2018 by K. Crawford
    • Great choice for a 92mm fan replacement
works great. I really didn't like the color but this color was cheaper and this was for a lab build so I didn't care. Cable length: good, noise level: Noctua is known for quiet fans, this doesn't disappoint. Mountability: no problems. Airflow: good not great ... but it's only a 92mm fan so it meets expectations ... show more
Reviewed in the United States on January 19, 2026 by GleninTenn

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