Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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Dorothea Hill
> 3 dayWow, I can’t belive how much of a difference these made. I wish I could upload two videos for the before and after. I can’t even hear them from my desk and the fans are more quite then the water pump now! I should have made the upgrade years ago! (Video is of two of them running max speed and the occasional gushing is noise from the water pump for comparison!)
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Fou L.
> 3 dayIm running this in my ITX build. Its enough to cool my components without having me worry. My build: 8600k overclocked to 4.5ghz, EVGA 1080ti, 16gbx2 g.skill f4-3200c16-16gvk, asus z370i, and a thermaltake core v1. Im also running 1 Noctua NF-A20 fans in the front and 2 Noctua NF-A8 at the back. Been running great since August 2018.
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KHOA TRAN
> 3 daygood fan
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David
> 3 dayAbsolutely fantastic product. One of the fans went out on a company computer and the HP replacement was going to be $80+ just to buy a used one. Instead I went with this and on top of it looking way cooler, it works perfectly.
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Letha Emmerich
> 3 dayThese fans are so quiet and install very easy and really cool your computer down with no effort.
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Connie
> 3 dayFor a computer.
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Audra Altenwerth
> 3 dayIts nice.
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Barry
> 3 dayA beautiful unit. Not just the usual junk, Made in Germany, (I think). A German company. Ingenious design. Runs almost silently. Highest recommendation. Unique shock resistant vibration damping frame design. Scientific fan blade design. Every aspect of the unit has been cleverly thought out.
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roman
> 3 dayI heard that this manufacturer was the best in their field, but I really didnt think much of it. So often when you hear premium you dismiss it as marketing tat. But truly, as soon as I opened the package it was clear this product is in a league of its own. The fan is made of sturdy plastic, the rubber shock absorbers feel made to last, and the wiring is in a sleeve that feels nice to manipulate. They could have easily had just the fan, and it would justify the cost, but it comes with a few extra wires to accommodate any use you could have for it. And though it isnt related to the product itself, the presentation of packaging was stellar and beautiful. For what is a $15 fan, I am blown away by the quality and consideration of this product, and will stick with Noctua whenever I need a cooling solution.
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Ken from Redmond
Greater than one weekThese are very quiet fans. I use them both on my AIO cooler and regular CPU cooler.
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.
AAO frame
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.
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Flow Acceleration ChannelsThe 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. |
SSO2 bearingThe 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 padsIntegrated 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. |
Scope of delivery
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Inner Surface Microstructures
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.
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| NF-A9 PWM | NF-A9 FLX | NF-A9 5V PWM | NF-A9 5V | NF-A9 PWM chromax.black.swap | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin | 4-pin PWM |
| Voltage | 12V | 12V | 5V | 5V | 12V |
| RPM | Max: 2000 / Min: 400 | 1600 | Max: 2000 / Min: 400 | 2000 | Max: 2000 / Min: 400 |
| RPM with L.N.A. | 1550 | 1250 | - | - | - |
| RPM with U.L.N.A. | - | 1050 | - | - | - |
| Acoustical Noise | 22,8 dB(A) | 17,1 dB(A) | 22,8 dB(A) | 22,8 dB(A) | 22,8 dB(A) |
| Acoustical Noise with L.N.A. | 16,3 dB(A) | 11,6 dB(A) | - | - | - |
| Acoustical Noise with U.L.N.A. | - | 8,4 dB(A) | - | - | - |
| Size | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Black with swappable coloured anti-vibration pads |