Scythe Kaze Flex 92mm Fan, PWM 300-2300RPM, Quiet Case/CPU Cooler Fan, Single Pack

Cool and quiet, I'm impressed enough that I'm back to order a third for yet another project. Perfect for an SBC server or HA type project.

I have a NR200P, I use this fan as a rear intake that feeds a thermalright peerless assassin with 2 noctua P12's. This helped with stabilizing my thermals as the P12's couldn't pull enough air on their own. Best part is it did not significantly add any fan noise.

used this fan to help pump in some fresh air for my gpu through the psu shroud in my case. had to return a couple fans before this one due to noise. this one is very quiet near max rpm and moves a good amount of air.

They’re 90mm pc fans. What’s to criticize?

Used in a Dell 8940 overhaul - yes, you can hear them spool up to higher speeds under load, just barely, but when running steady you really can't hear them at all (I have multiple going in the same box). I find the hum pleasant, not too low/vibrating and not too high/ear bothering.

Good quality and air flow and quiet while in heavy load.

Nice fan, moves quite a bit of air when needed. Has a 4 pin PWM control so it speeds up when temps climb. Even at high speed it stays quiet. At normal temps you cannot even hear it. Good value.

The fan failed on a 10 year old Cooler Master Hyper TX3 cooler. This is a nearly exact replacement for that fan. Just remove the 4 screws and plastic hardware from the old fan, reinstall onto this one and clip it onto the cooler. It doesn't fit quite as well as the original but stays in place and has 4 pin PWM control like the original fan.

I left the Noise level at 3 stars only because I have a 3 pin connector and it runs at full speed all the time so I can't really judge for myself. Other than that, it's a very powerful fan for a decent price.