NF-A6x25 PWM

Right, so I bought this Noctua fan because the missus kept complaining that my old PC fan sounded like a small lawnmower revving in the corner of the living room. Apparently, it was drowning out her telly programs. 'Get a quieter one,' she says, 'or the fan's not the only thing that's getting replaced!' Enter the Noctua NF-A6x25 PWM. It’s marketed as a 'premium quiet fan,' and I thought, 'Well, it can't be any louder than her complaining!' And I'll tell you what – this thing is a revelation. It’s so quiet, I keep checking it’s actually spinning. Honestly, you could have it on during an ASMR video and still hear every whispered 'crinkle crinkle.' It’s a doddle to install, too. Even with my sausage fingers, I had it up and running in minutes. Comes with all the bits – screws, extensions, even little rubbery doodahs to stop vibration (though my PC now vibrates less than my phone). Performance? Top-notch. Keeps the PC cooler than a penguin in a fridge, and not a peep out of it. Looks? Well, let’s be honest, it’s brown and beige – not exactly winning any beauty contests. But then, I don’t buy a fan for its looks, do I? If I wanted style over substance, I’d be shopping for designer curtains, not computer parts. In conclusion, if you want a fan so quiet it makes your old one sound like a jet engine and keeps your PC running smoother than a freshly buttered crumpet, this is the one. Just don’t tell the missus how much it cost, or you’ll be hearing noise of a different kind! 10/10 – would recommend, even if it’s beige.

Needed this for a SFF build that I'm trying to keep cool and quiet and it works flawlessly in every regard! Good air flow and can't even hear it. I had to check it was spinning to see if it was even turned on it's that quiet. It's in a Stone computer case from 2012/2013 and it fits perfectly. I'd say if you got 6cm mounting system and about 2.5cm space for the fan it and a four pin header should be compatible! And considering how well it works I think its good value. I have brought other fans that claim to be silent and were anything but so yeah nice fan!

Bought as a direct replacement for the CPU fan of an old - 5 to 7 years - HP Compaq 8000 Elite ( small form factor desktop Mini-PC). Unfortunately although slightly quieter than the original fan I aborted the change. Reason being that with this fan in place I realised the noise I was hearing is actually more a consequence of the air flow required for a 65watt processor within the case. Simply put the air flow through the front grill and then the CPU heat exchanger was most of what I am hearing, the fans themselves produce little noise on idle. Which is a shame as I have a 17watts (Intel Cel-1037U) pico-PC that is completely silent and was hoping for the same - the old Intel Duo-Core E8500 is approximately 25% more powerful and as a casual desktop is very good even today). The Noctua Fan came with three cables (including a low noise 7volt adaptor) and rubber anti-vibration plugs plus screws, i.e. everything you ever likely to need. Clearly a quality product with a justified price tag, not sure however if such quality is actually ever needed nor the best spend on ultra cheap old PCs. I'll re-use the fan on something more appropriate - aux case fan the most liekly.

Bought this to replace a gelid silent 6 which had, ironically become noisy. Admittedly I've replaced a 10mm thick fan with a 25mm thick one (it's mounted externally on my server case, attached to a hole I cut just above the raid controller so size doesn't matter) but I couldn't feel the airflow of the old one when it was running full blast, this one pushes a significant volume of (very warm) air on low speed and is quieter than the gelid one was before it failed. The fact that it's noticably removing heat from the case tells me it was a worthwhile upgrade over the old fan.

When my Apple Macintosh Classic II arrived from eBay, the noise from the fan was very loud. It was not a supprise as it was over 30 years old, so this replacement fan was an identical size and very much quieter. The only modification I had to do was detach 2 of the 4 wires as this has a 4 pin connector. The original fan only had 2 pins, black (ground) and red(+12v). I joined up the black to black and the yellow to red and discarded the other 2 wires. Works perfectly and now lovely and quiet. Great product!

I bought HP 8200 USDT and despite my efforts 7 year-old machine was not as quite as I wanted. I decided to swap its fans and it is not the same machine any more. Noctua fans are really quiet, no vibrations too. Please note that If you want to change HP fans you will have to cut a little bit of Noctua's 4 pin male cable . Otherwise it just does not fit, 1 minute job with a sharp knife. Also the Noctua cable is at leat twice too long. HP 8200 and the whole USDT series is a small machine with no need for cables that long. 5 stars, no doubt. Expensive fans but worth their price.

I bought two of these to replace the stock fans in an HP EliteDesk 800 G1 USDT desktop PC as the stock fans are a little noisy particularly when the cpu fan spins up to higher speeds. The cpu fan is easily replaced by removing the shroud and simply pulling the old fan free of the rubber lugs - then replace the lugs with the Noctua supplied ones and reattach the fan. The rear case fan is a little trickier to remove - you either need to remove the motherboard or simply bend the metal edge above the fan just enough to remove it - then replace with the Noctua fan. The supplied cable is much longer than the original fan so you need to tuck it away - you will also need to remove one of the notches on the cable plug so it fits the HP fan 4-pin socket. The PC is now very quiet even under load especially with an SSD fitted instead of a regular 2.5" hard drive.

I use two NF-A6x25 PWM on my DELL T5810 to help cool the internal. I initially use 4 pin to 5 pin adapter and connect the two FAN to the HDD fan header but it turn out the speed is too slow to be useful. I end up buying SATA power to two 4 pin fan adapter (this will make the fan run at full RPM as it connect only the two power pin @ 12v) so I use the Low noise adapter cable supplied included in the noctua fan to make the fan run at lower RPM instead of full RPM. My setup is one fan at the back for exhaust and another one in-front of the CPU to push more fresh air into the CPU. My CPU temperature is 3-5c cooler, for light work (browsing / watching youtube will be 35c-40c) with room temperature of 28c. The two noctua fan are practically silent and I didn't notice any noise increase by installing them.

Tolle Lüfter, super leise habe ich schon mehrfach gekauft und für verschiedene Anwendungen verbaut. Allerdings auch nicht ganz billig

Wentylator jest bardzo cichy i mega wydajny. Nie jest tani ale warto zainwestować w jakość, bo to się opłaca.

Pues no hay mucho que decir, es algo caro pero es simplemente un excelente ventilador, desde el empaque puedes ver la calidad de primera, con muchos extras como un cable divisor, una extensión y un cable para limitar la velocidad por si requieres que sea aún más silencioso pero dudo que a alguien le haga falta porque en verdad es super silencioso considerando que es de 3000rpm, su único "pero" es que es algo grueso.

Supergood quality...