NF-A8 PWM, Premium Quiet Fan, 4-Pin (80mm, Brown)

I replaced a dell optiplex MT i3 cpu fan, which rated much higher than the noctua. I thoughy I'd sacrifice flow for quietness. However, it immediately dropped a coulple degress at idle, and prime95 stress tests stablized around 78C after running for hours. At full speed, it's much louder than at idle, but the noise is low pichted and much tolerable than whining nosie. Although the Noctua fan is quiet, cpu fan is not the only souce of noise. I found my computer case itself makes some annoying metalic noise due to harmonic viberation with gpu and cpu fans. I could reduce the viberation noise by holding the case tight. I will probably apply some electric tape or clamps to tighten the case.

I recently built 2 small factor Dell pc's. Both lacked a front case fan. I have used Noctua fans for some time, and find them to be very well made and quiet. This model fits in the front perfectly in the Dell 3070 or 5060 small factors.

Holy crap these things are quiet. I built a PC into a rack, and stole a fan off an old PC I had lying around, but it was only a 3-pin fan, and I wanted more control. So I was looking at a different brand, and the reviews mentioned that they weren't as quiet as Noctua fans. So I dropped the extra money to grab a pair of these. I set my curves, and while I know they're working - because my temps are about half of what they were before I installed them - I can't hear them, like, at all. My CPU temps went from around 55-60 degrees down to around 34-40, so it's definitely great at cooling. Yes, there are cheaper options out there, but if you want a dead silent, very efficient fan, this is definitely worth the money.

I love the extra cable included to connect to it for dropping the rpm. Got this to use as intake-front fan for my dell optiplex 3050 mini tower that does not have any front fan. It goes in crooked because of the tight fit, but no one is going to see that. So far so good. I've heard great things about this fan company. Oh, and the fan looks beautiful.

excellent fan and very quiet

Excellent packaging, these are the quietest fans available, lots of accessories

My Dell Optiplex SFF running Proxmox with a quad 1Gb NIC and a dual 10Gb Mellanox card was running hot, like 80C. I wanted more airflow into the case, so I bought this 80mm case fan for the front, next to the PSU. Installation was simple with the included mounting adapters. Unhooked the factory CPU fan from the MB, inserted the fan Y cable and connected everything up again. At first I got a MB error code on boot. The error was sill being reported when I disconnected the case fan and only left the CPU fan. I then connected the CPU directly to the MB and sill got an error code on boot. Something was borked. Pulling the cmos bios battery out, waiting and the reinstalling solved the problem. Put the Y cable back in and connected the CPU and case fan. It booted without any errors, but I had to go through and set all my bios parameters, they were all gone. If I let the MB control the fans the CPU 65C. If I let the fans run full speed the CPU temp drops to 44C! Its a Proxmox server, so I don't mind the extra noise, which is 90% the stock CPU fan. The case fan is almost silent.

Perfect fit in the front of my Framework Desktop and helps keep it cool with no real noise. I have the Noctua main fan also with the Noctua side panel. The computer is under my desk and if both fans are on full, and I listen then I can hear it as long as nothing else is making noise. I also have a non-PWM USB version of this fan that I put in my small drink fridge to move air around to help cool more evenly. It's been running in the fridge at 36F for 6 months now with no problems. They are more expensive than most other fans, but I have been buying nothing but Noctua for 6+ years and I sent think I've had a single fan fail yet.