Noctua NF-A4x10 24V PWM, 40mm Quiet Fan for 3D printers and other Applications, 4-Pin, 24V Version (40x10mm, Brown)

I recently upgraded my Ender 5 S1 3D printer by replacing the stock fan with the Noctua NF-A4x10 24V PWM 40mm Fan, and the improvement has been remarkable. ✔️ What I Appreciate: Superior Quietness: The Noctua fan operates with minimal noise, significantly quieter than the original stock fan. This enhancement has made my printing environment much more pleasant. Efficient Cooling Performance: Despite its quiet operation, the fan provides excellent airflow, effectively maintaining optimal temperatures during extended printing sessions. High-Quality Build: The fan's construction is robust and durable, reflecting Noctua's reputation for premium quality components. PWM Control: The PWM feature allows for precise speed control, enabling the fan to adjust its performance based on the printer's cooling needs, which contributes to both efficiency and longevity. ❌ Areas for Improvement: Installation Considerations: While the fan itself is top-notch, users should ensure compatibility with their specific printer model. In some cases, slight modifications or additional adapters may be necessary for installation. 💡 Final Thoughts: The Noctua NF-A4x10 24V PWM 40mm Fan is an outstanding upgrade for the Ender 5 S1 3D printer. Its quiet operation, efficient cooling, and high-quality construction make it a worthwhile investment for those looking to enhance their 3D printing experience. ✔ Best For: 3D printing enthusiasts seeking a quieter and more efficient cooling solution for their printers. ❌ Not Ideal For: Users who prefer plug-and-play solutions without any need for modifications. 👉 Overall: 5/5 – An excellent fan that delivers on performance and quietness, significantly improving the 3D printing environment.

I’ve been thoroughly impressed with this fan – it’s everything you’d expect from Noctua. It’s exceptionally quiet to the point of being nearly inaudible, even when running continuously. I’m using it to cool a Raspberry Pi 4 setup, and it’s done a brilliant job keeping temperatures in check without introducing any noticeable noise. The build quality feels premium, and installation was straightforward with the 4-pin PWM connector. Although compact at just 40mm, it punches well above its size in terms of airflow and thermal management. Perfect for compact builds or custom projects where noise is a concern. Highly recommended if you need reliable, quiet cooling in a 24V system

Bought to replace the stock fan in a filament dryer. Together with a 3D printed adapter it works well and the noise is reduced to a more bearable level especially if misophonia is a an issue.

Installed on a Creality Ender-2 Pro. Like-for-like swap and super easy to install with the included OmniJoin adapters. I didn't use the included low noise adaper as it's already quieter than the stock fan.

There is something about Notcua fans that scream quality to me. This one is going in my Ender 3 as a hotend cooling fan, as I'm not sure if the existing one is working right or not. Although I'm not using the PWM, or Tacho Signals at the moment, there is room to be able to add something into the mix to allow me to see what the fans RPM is, or even to control the speed - though I'm unlikely to run at anything short of 100%. Actually, I love that the fan is extremely quiet at full speed.

bought to replace the hotend and mainboard fans in my ender 3. after doing so (although the PWM goes to complete waste here), it runs way quieter, near silent (at full speed!) and the airflow is great. very very happy. the included accessory package is very premium compared to most fans, the anti vibration pads are nice, the build quality is clearly good.

Beautiful colour scheme. Cooling performance is fantastic, especially since it's so quiet. Used these in my 3d printer to make it quieter and works fantastically. Always a pleasure using Noctua (when it doesn't break the bank lol)

Not as quiet as I expected it to be

Due to their 24V rating, these are advertised as a "silent" alternative to the stock fans of your 3D printer. And yes, they are silent but mostly because they move about half the air a stock fan does. I used these to replace the fans on my Ender 3 and the result was nothing but problems. It doesn't cool the heat sink of the hot end enough causing filament to bulge before it reaches the hot end. This results in under extrusion and extruder skipping because it needs a lot more force to push the filament through the hot end. Also, when changing filament, I had to take the extruder apart because due to the bulging of the filament, the filament got stuck in the lever of the extruder. So for now, I'm stuck with using the stock but very noisy fan until I find a proper "silent" replacement...

Ottimo prodotto,preso per sostituire una ventola simile su una stampante 3d ma fastidiosa per il rumore. Questa è silenziosissima.

Quality fan, as described. Replaced the drive cooling fan in my Ender 3, Original fan was way to loud... This fan you cant even hear at full speed, and it pushes more air the the original fan as well!

Ich habe mir den Noctua-Lüfter für mein PC-Gehäuse gekauft, um die Kühlung zu verbessern – und ich bin absolut begeistert. Die Verarbeitungsqualität ist, wie man es von Noctua kennt, erstklassig. Alles wirkt durchdacht und hochwertig, vom Lüfterrahmen bis zu den vibrationsdämpfenden Gummiecken. Was mich besonders überzeugt hat, ist die extrem leise Laufleistung – selbst unter Last bleibt der Lüfter kaum hörbar. Gleichzeitig sorgt er für eine hervorragende Luftzirkulation und hat die Temperaturen in meinem System deutlich gesenkt. Auch die mitgelieferten Zubehörteile wie Y-Kabel, Low-Noise-Adapter und hochwertige Schrauben zeigen, dass Noctua an alles gedacht hat. Fazit: Wer Wert auf Qualität, Laufruhe und Effizienz legt, kommt an Noctua kaum vorbei. Der Preis ist zwar etwas höher, aber absolut gerechtfertigt. Klare Kaufempfehlung für alle, die ihren PC aufrüsten oder optimieren möchten!

The fan on my Ender-3 3D printer recently suffered a catastrophic failure, losing several blades which resulted in terrible vibration and completely ineffective airflow over the hot end. Knowing how crucial proper cooling is for print quality and component longevity, I immediately sought out a premium replacement, leading me to the highly-regarded Noctua NF-A4x10. I am incredibly happy I chose this fan. The difference this small fan makes is astounding. First, it is nearly silent. Where the old stock fan sounded like a small jet taking off, this Noctua fan is whisper-quiet, making my printing area much more pleasant to be around. Second, the superior airflow is immediately noticeable; it maintains component temperatures perfectly, which is key for long, reliable prints. The build quality is exceptional—this is clearly a product built to last. What makes this purchase a five-star experience is the comprehensive package. Noctua genuinely makes the installation a breeze by including everything you could possibly need for replacement. The various cables and adapters are great, but the included splicing tool is particularly useful for making clean, reliable connections to the printer's existing wiring harness. If you are looking to replace a damaged or noisy fan on your 3D printer (or any small device that uses this size fan), look no further. This is a premium component that delivers on its reputation. Highest of recommendations!