heading

The NF-A14 5V PWM is a PWM-enabled 5V variant of Noctua’s award-winning, premium-quality NF-A14 140mm fan. Featuring an AAO (Advanced Acoustic Optimisation) standard frame and sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A14 is renowned for its superior performance and outstanding quietness of operation. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing guarantee superb running smoothness and excellent long-term stability. Topped off with the included USB power adaptor cable, OmniJoin™ adaptor set and 6-year manufacturer’s warranty, the NF-A14 5V PWM is a premium choice for demanding 5V applications that require PWM control.

Being a 5V fan, the NF-A14 5V PWM cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
Details
Award-winning NF-A14 design

Award-winning NF-A14 design

Having received more than 100 awards and recommendations from the international press, Noctua's NF-A14 has become a proven premium choice for 140mm cooling needs. Its renowned efficiency has convinced tens of thousands of customers all over the world.
5V PWM version

5V PWM version

5V fans are used in various devices and applications. With the included USB power adaptor cable and OmniJoin™ adaptor set, the NF-A14 5V PWM is a proven premium solution that gives you full flexibility both for replacing existing 5V fans and for new, custom applications.
Flow Acceleration Channels

Flow Acceleration Channels

The NF-A14 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.
AAO frame

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.
Stepped Inlet Design

Stepped Inlet Design

Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.
Inner Surface Microstructures

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.
Integrated anti-vibration pads

Integrated anti-vibration pads

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.
Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD

Supporting fully automatic PWM speed control, the NF-A14 5V PWM uses Noctua's novel, custom-designed NE-FD3 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.
Polarity protection

Polarity protection

As many devices using 5V fans feature proprietary connectors, and documentation of the pin alignment may not be available, the fan features an integrated diode for polarity protection. This way, you're on the safe side if you accidentally connect it with reverse polarity.
SSO2 Bearing

SSO2 Bearing

The NF-A14 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.
Metal bearing shell

Metal bearing shell

In order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-A14 sports a CNC milled bearing shell made entirely from brass.
OmniJoin™ Adaptor Set

OmniJoin™ Adaptor Set

Many devices featuring 5V fans use proprietary fan headers, so the NF-A14 5V PWM comes with Noctua’s OmniJoin adaptor set. Just cut the original fan’s cable, fix it to the adaptor using the supplied 3M Scotchlok™ connectors and you can plug the NF-A14 5V PWM to proprietary fan headers!
USB power adaptor cable

USB power adaptor cable

The fan includes a USB power adaptor cable that allows it to run on power banks, devices with USB host ports or USB power supplies such as those used for smartphones, giving you near endless possibilities for using the fan in your home, in your car or wherever a need for cooling occurs!
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.
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-A14 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer's warranty.
NF-A14 5V PWM
General
Notes and warnings
Being a 5V fan, the NF-A14 5V PWM cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
FAN Specification
Size
140x140x25 mm
Mounting hole spacing
124,5x124,5 mm
Connector
4-pin PWM
Bearing
Blade Geometry
Rotational Speed (+/- 10%)
1500 RPM
Min. Rotational Speed (PWM, +/-20%)
300 RPM
Acoustical Noise
24,6 dB(A)
Static Pressure
2,08 mm H₂O
Max. Input Power
1,3 W
Max. Input Current
0,26 A
Voltage
5 V
MTTF
> 150.000 h
Scope of delivery
  • 30cm extension cable
  • NA-AV1 anti-vibration mounts
  • USB power adaptor cable
  • OmniJoin adaptor set
  • Fan screws
Warranty
6 years
NF-A14 5V PWM
11.09.2018 // HardZone.es
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NF-A14 5V PWM Review

Salta a la vista que cuanto más grande es el ventilador más se nota la diferencia de temperatura del router, si bien es cierto que el NF-F12 gracias a su tecnología que hace que el aire salga más recto, se comporta incluso mejor que el modelo de 140 mm. También es sorprendente que con el pequeño NF-A4x10 de solo 40 mm de diámetro, se logra bajar la temperatura del router un par de grados; sinceramente, yo esperaba que su efecto fuera nulo, ya que depende mucho de en qué zona del router lo pongamos dado su pequeño tamaño. No obstante, también hay que decir que algunos de ellos son bastante ruidosos dado que conectados por USB funcionan siempre al máximo. El modelo de 200 mm es prácticamente inaudible, y me ha sorprendido también el poco ruido generado por el NF-A12x25 y el gran flujo que ambos son capaces de mover. En definitiva son los dos que me han parecido mejores en todos los aspectos.
Test verdict: "Con esta nueva familia de ventiladores capaces de funcionar a 5V e incluso por USB, Noctua amplía el espectro de posibilidades que brinda añadiendo compatibilidad con dispositivos como impresoras 3D o NAS, con el añadido de que podremos aumentar el elenco de posibilidades hasta donde nos llegue la imaginación gracias a que son compatibles con USB, y todo con la calidad y el rendimiento a los que nos tiene acostumbrados este fabricante austriaco." (Rodrigo Alonso, HardZone.es)
02.08.2018 // mod-your-case.de
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NF-A14 5V PWM Review

Mit dem NF-A14 5V u. NF-A14 5V PWM hat Noctua seine A-Serie um zwei weitere 140-mm-Lüfter erweitert, deren Einsatzgebiet aufgrund der Betriebsspannung von 5 Volt jedoch nicht direkt innerhalb des PCs zu finden ist, sondern überall dort, wo ein entsprechender 5-Volt-Lüfter arbeitet oder wie in unserem Beispiel genannt auch zu einer Modifikation eingesetzt werden kann. Die beiden Lüfter können hier nicht nur als Ersatz für einen defekten Lüfter dienen, sondern auch dafür sorgen, das Geräuschlevel der entsprechenden Komponente zu senken.
Test verdict: "Trotz der geringen Betriebsspannung können die beiden Lüfter die gleiche Kühlleistung wie die 12-Volt-Variante des NF-A14 erreichen." (Patrick Seus, mod-your-case.de)
31.07.2018 // PCReviews.es
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NF-A14 5V PWM Review

no tenemos sino palabras de agradecimiento a Noctua por la realización de estos productos, donde podemos observar que todos destacan en una calidad excepcional
Test verdict: "no tenemos sino palabras de agradecimiento a Noctua por la realización de estos productos, donde podemos observar que todos destacan en una calidad excepcional" (Sergi Sanz, PCReviews.es)
24.07.2018 // HWready.it
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NF-A14 5V PWM Review

Noctua ha da sempre l’abitudine di portare sul mercato prodotti eccezionali, anche questa volta ci riesce sia a livello prestazionale che a livello qualitativo. Le proposte viste oggi si adattano in pratica a quasi tutti i possibili usi per quanto riguarda i piccoli e grandi elettrodomestici, l’interfaccia a 5v allontana in parte dal mondo dei PC queste proposte. Durante i nostri test abbiamo provato a vedere come sarebbe possibile usare questi prodotti con elettrodomestici che sicuramente tutti abbiamo in casa. Cominciamo dal modem, noi ci affidiamo ad un Fritz!Box 7590 che è tra i più potenti sul mercato, ma anche questo soffre il caldo estivo. Abbiamo adagiato una ventolina da 4 cm vicino ad una delle feritoie e dimezzato le temperature in un attimo, semplicemente alimentandola con l’USB dello stesso. Stessa cosa abbiamo fatto con un box android vecchio stampo, che dopo una decina di minuti cominciava a scaldare e attivava la sua fastidiosa ventolina, anche qui la piccola ventola da 4 cm ha fatto il suo miracolo. Abbiamo montato due fa 8 cm dietro una PS4 pro, diminuendo drasticamente il rumore prodotto dalla stessa. Gli elettrodomestici forniti di USB che potrebbero giovare di una ventola Noctua sono tantissimi.
Test verdict: "Noctua ha da sempre l’abitudine di portare sul mercato prodotti eccezionali, anche questa volta ci riesce sia a livello prestazionale che a livello qualitativo." (Mauro Santoro, HWready.it)

NA-SAV4

  • 16 NA-AV4 silicone anti-vibration mounts for up to 4 fans
  • Flat case-side end for clean exterior look
  • 5 defined, numbered pawls
  • Compatible with all Noctua fans
NF-A14 5V PWM

NA-SYC1

  • 4-Pin Y-Cables
NF-A14 5V PWM

NA-FC1

  • Compact, highly flexible controller for 4-pin PWM fans
NF-A14 5V PWM

NA-SEC1

  • 4-Pin Extension Cables
NF-A14 5V PWM

NA-SAV2

  • Anti-Vibration Mounts
NF-A14 5V PWM

Installation Manual (PDF)

Information Sheet (PDF)

Which Noctua 140mm fans are optimised for airflow, which are optimised for static pressure?

Noctua only distinguishes between airflow optimised and pressure optimised fans in its 120mm range (see this page for details). For 140mm fans, there is no such distinction: Both the NF-A14 and the NF-P14 redux models are true all-rounders that provide outstanding levels of airflow and static pressure. Either of them works excellent both for case cooling and for use on radiators and heatsinks.

What pin configuration do Noctua 5V fans use?

The pin configuration of Noctua 5V fans is identical to 12V fans:

5v pin configuration

Can I disassemble my fan for cleaning (or other purposes, e.g. painting)?

In order to ensure flawless operation over many years of usage, all Noctua fans come with a premium grade SSO bearing, which is fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

It is thus recommended to clean your fans using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please don’t use a vacuum cleaner as this may apply excessive force to the fan.

Can I paint my Noctua fan in order to change its color?

Since even small variations in the layer of paint can lead to an imbalance of the impeller, resulting in vibrations, higher noise levels, increased stress on the bearing and thus reduced lifespan, we do not recommend painting the fan. Please note that for the reasons stated above, painting the fan will void your warranty.

How can I find out the direction of airflow and sense of rotation?

When looking at the fan so that the circular sticker with the Noctua logo is facing you, the direction of airflow is towards you and the sense of rotation is clockwise:

P14

How should I clean my Noctua fan?

Fans inside computer cases tend to accumulate dust over longer periods of usage. In order to maintain maximum performance, please clean your fans regularly using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please do not use a vacuum cleaner as this may apply excessive force to the fan and do not put the fan under running water as water residues inside the motor may lead to short circuits.
In order to ensure flawless operation over many years of usage, Noctua’s premium grade SSO bearings are fully sealed to prevent the entering of fine dust particles. Please note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty.

How much torque should be used for fan screws?

Please use 0.6Nm to tighten fan screws. Make sure not to overtighten the screws as this may damage the fan frame.

Which Noctua fan or CPU cooler should I buy? How to choose the right model?

Not sure which Noctua product to buy? Our detailed buying guides for fans and CPU coolers help you to choose the model that works best for you.

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