NF-A14x25 G2 PWM, High-Performance Quiet Fan 140mm | High Airflow & Static Pressure, Low-Noise 25mm Thick Fan, for Coolers/Radiators/Cases, Rich Accessory Kit, 1500rpm 4-Pin PWM

Swapped my case to Antec Flux and fit 4x NF-A14x25 G2 PWM Sx2-PP at the same time, 3x at the front and 1 in the rear, used 1 NF-A14x25 for PSU shroud intake, really impressed with how you can't hear these fans under 800 RPM, even at 400 RPM the amount of air they move is impressive, they can be heard once you start increasing the RPM however with the amount of air they move I don't have to have them above 600 RPM. As in Noctua fashion you get a very nice unboxing experience and they come with all the usual accessories you'd expect, one thing to note is by default the fans ship with the radiator rubber gasket preinstalled unlike previous Noctua fans that come with the 4x corners preinstalled so you'll have to swap them over. Expensive when compared to other fans on the market however I'm more than happy with my purchase.

Whisper quiet missing bracket in the box not bothered because used for my case not radiator super quiet fan zero noise.

These fans are the pinnacle of quiet efficient cooling.

Glad I went for these, have been installed for over 12 months and haven’t thought about them once, they are that silent, you just forget about them. 5 out of 5, worth the premium.

Used as an external fan on a fanless PC to cool after adding an additional hard drive and prevent overheating. Does the job.

Noctua fans never disappoint when it comes the performance, noise and build quality. Better air flow and much quieter than the stock fans in my Fractal R5. They're pricey but imo they're worth it.

I like the performance of these fans. I am after mostly quiet but occasional power. The amount of research & development that went into these fans is impressive. I used them to replace my NF-A14s when one of them died (within the six year warranty). I have the same level of system noise (aka none with headphones on) and my coolant temperature is lower; which with modern CPUs and GPUs means more performance. I have my fans set to ramp up @36'c water temperature (summer time) and have 10'c to go, at virtual silence. I bought a spacer: Noctua NA-IS1-14 Sx2; and have used it on one of my 3 140mm radiator fans as space permitted. I've watched a youtube review which said that the fans can perform better with the spacer in this pull scenario with a radiator. Did I mention the six year warranty?

Virtually silent below 30% RPM. And, on that setting, nothing in my PC even gets close to 90 degrees, so I just set the fan curve in the BIOS that only ramps up above 90. Very happy. Also, some reviews mentioned some kind of a high pitched noise compared to previous generation - I'm 35 and I can't hear it. 100% recommend.

Noctua NF-A12x15では静圧風量が足らず、ちょっとした負荷でMB温度やSSD温度が上がりがちだった。 結果、ファン回転数を上げざるを得ず、少し騒音が大きめとなっていた。 Noctua最新世代である、NF-A14x25 G2ならば静圧風量共に期待できると考えての導入。 構成。 CPU Intel Core Ultra 5 225 CPUクーラー Noctua NH-L9i‐17xx ケースファン Noctua NF-A12x15 PWM → NF-A14x25 G2 PWM ケース SilverStone SST-ML10B MB ASRock B860i wifi RAM Crucial DDR5 6000 16GBx2 電源 RGEEK 200W PSU ＋ 12V 20A ACアダプタ SSD Samsung 980Pro 500GB＆2TB 性能等。 A12x15では冷却に不安があった、RGEEK 200W PSUもうまく冷却できているようで安心。 同じファンカーブでも風量静圧ともにA12x15とは雲泥の差のようで、CPU温度-2℃、MB温度-4℃という結果。 騒音値もスマホアプリでの簡易計測ではあるが、負荷時で-3dBとなった。 実際、ファンの風切音が減ったような気がする。 総評。 Arctic P14 MAXと迷ったが、CPUクーラーと統一したかったのと、迷ったらNoctuaということでこれにした。 ファンとしてはかなり高価ではあるものの、パッケージの高級感や実際の性能、Noctuaのファンは今まで壊れたことがない実績から考えると、それに見合うものだと思う。

If I could give the NF-A14x25 G2 1000 stars, I would! This is hands down the best cooling fan I’ve ever used. Sure, the price is a bit higher than other options, but it delivers results that set it apart from the rest. It does an amazing job keeping my PC cool, and honestly, it’s not even that loud pretty impressive! I’ve stuffed my PC with as many of these as I could fit, and I couldn’t be happier with the performance. Absolutely love it!

Installed as an exhaust fan in my PC. Better than my old fan in both noise and air flow.

Easy to install plenty of cable length nice and quiet good airflow.

Väldigt dyra fläktar men i min mening värda varenda krona. Jag har 9st av dessa i min lilla hemmaserver och vid vila så snurrar de i 25% av maxvarvtalet och då hörs de inte alls, min ventilation i sovrummet som är nästintill knäpptyst låter mer. Vid 100% varvtal så är fläkten fortfarande knäpptyst i sig, det man hör är bara luften som flyttas och den flyttar galet mycket luft! Självklart låter det rätt mycket när luften flyttas men det är inget störande ljud i min mening och det är egentligen helt onödigt att köra dem på max då de presterar extremt bra redan vid låga varvtal. Om man bara mentalt kan komma förbi prislappen så är de helt klart värda pengarna!