Noctua NF-A4x10 FLX, Premium Quiet Fan, 3-Pin (40x10mm, Brown)
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Jan Ruhnow
12-06-2025Zu den Lüftern der Firma Noctua gibt es nicht besonders viel zu sagen, nur soviel:
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Tom
Greater than one weekWhen I didnt like was that I didnt see the size in the advertisement for me the size meet needs to be more prominently shown on the advertisement how do I send it back email me please
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grumpy cat
> 3 dayDefinitely quieter than previous fan, but wished it was quieter. Still workable.
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Mark McConnell
> 3 dayThe quietest fan I have ever not heard...at full speed...
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NICK
> 3 dayVentola silenziosissima, di altra categoria.
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A Confidential
09-06-2025PERFECT! I am no techy but my new lorex security system was loud as hell and kept me up for months, until I read blogs on others who had the same problem. One poster recommended another fan but I chose this because its made in Germany and had great reviews. So happy I changed out the fans in my security system. I can sleep now that I placed these in instead. Thank you mr. tech blogger!!!! If you are changing out a security DVR you will need two of these.
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ElMatador
Greater than one weekHabe den Lüfter gekauft um meinen i3 Mega leiser zu machen, was soll ich sagen, der Lüfter ist Superleise macht einen sehr Wertigen Eindruck und ist Klasse verpackt. Der Preis ist etwas Happig, aber trotzdem eine Klare Kaufempfehlung.
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jory
> 3 dayInstallé sur la tête dimpression de mon imprimante 3d cr10s extrêmement silencieux, fourni avec quelques accessoires je recommande !
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Chris
> 3 dayMein alter Lüfter hat leider ein Flügelrad verloren, da musste schnell ein anderer her.
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K. Smith
> 3 dayAlways the best !
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x10 FLX is a highly optimised, premium quality quiet fan in 40x10mm size. Smooth Commutation Drivetechnology and Noctua’s reference class SSO2 bearings ensure superb running smoothness and excellent long-term stability. Topped off with modular cabling and a Low-Noise Adaptor and OmniJoin Adaptor Set, the NF-A4x10 is a premium 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-A4x10 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-A4x10 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 mounting systems and fan clips used on heatsinks. |
Inner Surface MicrostructuresWith 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. |
Reduced motor hub size
Thanks to its streamlined, compact motor design, the NF-A4x10"s motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10"s superior airflow and pressure performance.
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| NF-A4x10 PWM | NF-A4x10 FLX | NF-A4x10 5V PWM | NF-A4x10 5V | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin |
| Voltage | 12 V | 12 V | 5V | 5V |
| RPM | Max: 5000 / Min: 1000 | 4500 | Max: 5000 / Min: 1000 | 4500 |
| RPM with L.N.A. | 3700 | 3700 | - | - |
| Acoustical Noise | 19,6 dB(A) | 17,9 dB(A) | 19,6 dB(A) | 17,9 dB(A) |
| Acoustical Noise with L.N.A. | 12,9 dB(A) | 12,9 dB(A) | - | - |
| Size | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige |
