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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.

Details
Succeeding the award-winning NF-B9

Succeeding the award-winning NF-B9

Noctua's NF-B9 fan has become a default-choice among PC enthusiasts looking for a premium quality quiet 92mm fan. Thanks to its thoroughgoing aerodynamic optimisations, the NF-A9 provides higher static pressure and an even better airflow/noise ratio than its much acclaimed predecessor.
Flow Acceleration Channels

Flow Acceleration Channels

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.
SSO2 Bearing

SSO2 Bearing

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.
Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the NF-A9 PWM uses Noctua's novel, custom-designed NE-FD1 PWM IC that integrates Smooth Commutation Drive (SCD) technology. By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.
Low-Noise Adaptor

Low-Noise Adaptor

The NF-A9 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 2000 to 1550rpm. The L.N.A. can be used either to run the fan at a fixed speed of 1550rpm or to cap the maximum speed when using automatic PWM control.
Extensive cabling options

Extensive cabling options

The fan's short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows the connection of a second NF-A9 PWM fan to the same PWM fan header for automatic control.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A9 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty.
NF-A9 PWM
FAN Specification
Size
92x92x25 mm
Mounting hole spacing
82,5x82,5 mm
Connector
4-Pin PWM
Bearing
Blade Geometry
Rotational Speed (+/- 10%)
2000 RPM
Rotational Speed with L.N.A. (+/- 10%)
1550 RPM
Min. Rotational Speed (PWM, +/-20%)
400 RPM
Acoustical Noise
22,8 dB(A)
Static Pressure
2,28 mm H₂O
Static Pressure with L.N.A.
1,53 mm H₂O
Max. Input Power
1,2 W
Max. Input Current
0,1 A
Voltage
12 V
MTTF
> 150.000 h
Scope of Delivery
  • Low-Noise Adaptor (L.N.A.)
  • 4-Pin Y-Cable
  • 30cm Extension Cable
  • 4 Vibration-Compensators
  • 4 Fan Screws
Warranty
6 years
NF-A9 PWM
10.05.2014 // Vortez.net
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NF-A9 PWM Review

+ They are quiet fans.
+ They have pretty good output for being so quiet.
+ They come in resilient packaging.
+ They come with well-chosen accessories.
Test verdict: "Noctua started with really good fans, and made them better. One thing that strikes you if you handle the old fans is that they are very good fans, so it makes sense that Noctua still sells them in their redux line. But these A-Series fans are even better, and well can they join their big brothers in the A-Series lineup." (Ed Hume, Vortez.net)
03.03.2015 // PureOverclock.com
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NF-A9 PWM Review

As always, sound levels are superb with these fans. While my opinions are subjective, what I found was after 45 dBs, that’s when I felt a fan was getting too noisy. Nothing about the Noctuas sounded too loud while testing them even at max speed, but with the plethora of LNAs and ULNAs to add to the fans, even if you didn’t have a way to control the fans it was unlikely you couldn’t tone them down to where you would be happy with them.
Test verdict: "Overall, I believe Noctua makes an excellent product. There really isn’t anything I can complain about except for the price, and even then the price is understandable. If you need good air flow, low noise and have a small form factor case that needs some better fans, I could definitely recommend what Noctua has to offer here." (Josh Jackson, PureOverclock.com)
09.02.2015 // QWERTYmag.it
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NF-A9 PWM Review

In questa recensione ci siamo realmente resi conto di quanto Noctua sia attenta ai dettagli e alla cura dei propri prodotti anche in delle “semplici” ventole che poi, in questo caso specifico, semplici non sono visto l’elevata cura nella produzione e nelle tecnologie adottate. Ci ha stupito moltissimo il fatto di ritrovare tutte le tecnologie citate nell’introduzione anche nelle ventole di dimensione ridotta come le NF-A4. Siamo decisamente soddisfatti sia dalle prestazioni in termini di efficienza/rumore, sia dal bundle che dai prezzi decisamente in linea con quelli di altri produttori ma assolutamente superiori in termini di caratteristiche e prestazioni. Attribuiamo a tutta la NF-A Series il premio Gold Award per l’innovazione tecnologica e la cura dei particolari che L’azienda ha dimostrato in questa serie di ventole super-efficienti.
Test verdict: "Ventole per ogni tipo di esigenza. Noctua con la serie NF-A ha pensato proprio a tutti e a tutto proponendo prodotti di altissima qualità e tecnologia mantenendo un ottimo rapporto qualità/prezzo. Decisamente apprezzata la cura dei dettagli e del bundle che rendoni queste ventole il TOP DI GAMMA sul mercato." (Davide Torno, QWERTYmag.it)
07.01.2015 // Neoseeker.com
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NF-A9 PWM Review

After studying the Noctua A-series Premium fans for the last few weeks, I have begun to understand how each design feature performs their function. As noted in the following paragraphs, each feature adds to the overall function of noise reduction, therefore improving air flow and performance efficiency. The Noctua Advanced Acoustic Optimization Frame has anti-vibration pads in each mounting flange corner. This feature not only reduces vibration noise transferring from the fan, but also into the fan from wobbly case components. The Stepped Inlet Design on the fan case edge turns the air flow from laminar to turbulent, reducing the tonal intake noise. The Inner Surface Microstructures next cause a boundary layer to reduce suction side flow separation as the fan blade tips pass, reducing the blade passing noise with improved air flow. The Flow Acceleration Channels on the fan blades cause the outer blade region air flow to speed up, reducing vortex noise of the fan blades while improving efficiency. Moving the magnet of the Noctua renowned SSO Bearing closer to the axis of the bearing improves stabilization, precision and durability. All of these features and more are packaged with many accessories for each fan, plus Noctua provides a 6 year warranty.
Test verdict: "Noctua A-series Premium fans are looking like the right choice for your new or replacement case fan." (Marvin Purdy, Neoseeker.com)
14.11.2014 // Modders-Inc.com
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NF-A9 PWM Review

Aside from the lower temperature, the A9 fans have a more “spread out” sound signature even though it is running at a higher RPM and has lesser high pitched noises across various speeds. The extra padded corners also help in giving extra space when positioned in a “pull” position minimizing noise. The smaller form factors and compact builds are much more common now than ever before with many users opting to build desktops that can be portable for LAN parties or for discreet integration in their living room as an HTPC. The A9 and A8 series fans fit these application well with excellent performance and low noise profiles that is even more flexible if need be. For storage or, spot cooling or component cooling in even tighter spaces, the A4 series offers a rare and impressive feature set that is above what most people would expect from something this small.
Test verdict: "These A-series fans also enjoy the same set of low noise features and premium build quality that the other Noctua fan series provides, including the impressive 6-year warranty and extensive accessory package." (Ron Perillo, Modders-Inc.com)
11.05.2014 // Hardware-360
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NF-A9 PWM Review

Stock performance shows a 3 degree drop with the A9 fans on heatsink use and up to 2 degrees under FPU only loads. Noise performance is superior in the NF-A9, despite the higher RPM with a smoother PWM operation and lesser high pitched noises across various speeds. The extra padded corners also help in giving extra space when positioned in a pull position minimizing noise. Ultimately each fan size has its own application depending on the chassis or heatsink applied to, although the smaller A4 5V fan is more suitable for storage cooling but will not look out of place as a chipset or spot cooler as well, especially the 12V version for added flexibility. The 92mm and 80mm A9 and A8 have a very balanced performance as both heatsink fans or case fans with their wide fan blade and excellent static pressure performance. The further lowered noise compared to the B9 and R8 series is a welcome change because the original fans were not particularly troublesome at all when it came to noise either. The integrated padded corners also work very well for noise dampening, especially when positioned as a “pull” fan since there is an added space that minimizes high pitched noises typically present in high-RPM performance fans when placed in this position.
Test verdict: "As with all Noctua fans, they come with premium pricing as they come in premium packaging and feature set so they are not easily affordable. The good thing is that the 6-year warranty found on larger Noctua fans also apply to the A9, A8 and A4 series, as well as the premium accessories that come out of the box." (Ron Perillo, Hardware-360)
14.05.2016 // Vmodtech.com
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NF-A9 PWM Review

วันนี้ในการทดสอบผมลองต่อทดสอบกับเมนบอร์ดโดยตรงครับ โดยผมวัดแรงลมนี่โอเคเลยครับสำหรับ Airflowแม้จะเป็นพัดลมตัวเล็กๆแต่แรงลมนี่หายห่วงครับเย็นจริงๆแต่ตามที่สเปกเคลมไว้จะอยู่ที่ 78,9 m³/h ครับ ส่วนถ้าใช้งานกับระบบ L.N.A.จะอยู่ที่ 62,6 m³/h ครับ ในส่วนของเสียงรบกวนอันนี้ต้องบอกเลยครับของเค้าเงียบจริงๆ ซึ่งผมได้หยิบมาฟังข้างๆหูนี่ก็เบามากๆเลยครับเงียบมากจริงๆสมกับที่ฟีเจอร์ที่ชูจุดเด่นเรื่องเสียงรบกวนครับ จุดเด่นอีกอย่างก็คือตัวยางทั้ง 4มุมกันกระแทกที่ช่วยซัพแรงและลดเสียงรบกวนได้เป็นอย่างดีครับ
Test verdict: "ก็มาถึงบทสรุปนะครับสำหรับการทดสอบ Noctua NF-A9 PWM ที่ วันนี้ถือว่าทำประสิทธิภาพได้ดีมากเลยครับทั้งในเรื่องของความแรงของพัดลมที่แรงดีจริงๆรวมไปถึงเสียงรบกวนที่ทำออกมาได้สวนทางกับความแรงของพัดลมที่เรีกได้ว่าเงียบจริงๆ กับดีไซน์ที่เน้นเอกลักษณ์ของยี่ห้อ Noctua ในโทนสีครีมตัดน้ำตาลก็ดูดีสวยงามไปอีกแบบครับ แม้ว่าตัดพัดลมจะไม่ได้มีแสงสีอะไรมาให้แต่มองดูรายละเอียดของงานแล้วถือว่าเนี๊ยบมากครับ ในส่วนของอุปกรณ์พวกสายเชื่อมต่อต่างๆก็มีมาให้แบบครบครันครับทั้งสายต่อพ่วง ต่อแยก หรือแม้กระทั่งสายต่อระบบ Low-Noise Adaptor ที่ช่วยเน้นเสียงรบกวนที่เงียบจริงๆ ถือได้ว่าเป็นพัดลมขนาด 92mm ที่เน้นประสิทธิภาพการใช้งานที่ครบครันเหมาะกับท่านทีกำลังมองหาพัดลมประสิทธิภาพเยี่ยมที่ทั้งแรงและเงียบไว้ใช้งานผมมองว่า Noctua NF-A9 PWM ตัวนี้น่าสนใจเป็นอย่างมากครับ โดยราคาวางจำหน่ายอยู่ประมาณ 5XX บาทไทยครับ สำหรับวันนี้ผมก็ขอตัวลาไปก่อน สวัสดีครับ" (Vmodtech.com)
04.04.2016 // ITNdaily.ru
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NF-A9 PWM Review

С одним вентилятором на борту Noctua NH-D9L способен отвести пыл от Intel Core i5-6600K на 4900-5000 МГц. Оптимальным и относительно холодным вариантом является показатель в 4700-4800 МГц. Пропеллер при этом не работает на максимальной скорости.
Test verdict: "Noctua NH-D9L и вентилятор Noctua NF-A9 PWM оставили исключительно положительные впечатления, с такими продуктами приятно работать. Рекомендуем не обходить стороной данные устройства, если такая возможность существует." (Евгений Никифоров, ITNdaily.ru)
04.02.2016 // SmallFormFactor.net
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NF-A9 PWM Review

All in all, these products are well built, well designed, and are able to achieve specs that by-and-large merit the premium price asked of them. None of the tested fans exhibited loud operation, and the included accessories ensured that the fans can be used in many different systems.
Test verdict: "It is typical for high-end or “luxury” goods to embrace a brand, style, or ethos, and Noctua does precisely that with their distinctive color scheme. The rest comes down to performance, though, and while you’ll pay top dollar to install a Noctua fan in your build, we’re hard-pressed to imagine how anyone will find themselves disappointed." (John Morrison, SmallFormFactor.net)
02.11.2015 // Hardaily.com
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NF-A9 PWM Review

Los ventiladores Serie A de Noctua están recomendados por Hardaily como ventiladores suplementarios (versiones no PWM), sustitutos de ventiladores más modestos o viejos para lograr mejor ventilación. Las versiones PWM son altamente recomendadas por Hardaily como sustitutos en los disipadores o radiadores y para que tengan autocontrol, ya que son los más potentes también. Todos ellos son perfectamente válidos para torres, servidores, para disipadores o incluso radiadores, siempre que sean compatibles con las medidas estandarizadas de 4 8 y 9cm. Todos estos ventiladores de Noctua son de los más duraderos y resistentes del mercado.
Test verdict: "Estos productos son prácticamente perfectos." (Raul Planelles, Hardaily.com)

Installation Manual (PDF)

Information Sheet (PDF)