Noctua NF-A14 iPPC-2000 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black)

Lets get one fact out first. as of this writing, there arent that many options for radiator optimized high static pressure 140mm fans out there.

Works great

Best in class! Cant get no better product to move airflow w high static pressure out there. Worth every penny they cost!

Added mine to the back of my case and it dropped my GPU temps at load about 5 Celsius. It isnt terribly loud either. It doesnt have a whine like some of my stock fans do. Id recommend to anyone whos looking to cool their PC some more.

Very loud whisper/buzzing noise from Motor. I bought 4 for my case, I have them wired into a PWM splitter and every single one makes the same identical buzzing sound. You can hear it from about 3 feet away even. I have them set up for 1115 rpm lowest and they go up from there. The noise kicks in at about 1000RPM. I was expecting quality with these 30$ fans, the air flow is excellent, but its this buzzing sound that each fan makes. As A test I put my old corsair PWM fans that came with my h110 and no hissing. Only when these are installed I hear hissing sounds. Get noiseblockers instead

These are great, heavy duty fans, they are just LOUD. I got a jet engine in my room now!

I ordered these fans to replace my Corsair H115i’s stock rad fans. They sit above the top bracket to which my rad is mounted and I am speechless. I thought the idle noise I heard was the front intakes...turns out it was the stock SP140MM fans. When I swapped them, I actually put my ears up to the vent to make sure they were spinning. I am serisouly at a loss for words. Not only do these fans keep the rig 4-5 degrees cooler, they are silent. These were the best investment I have made into this rig post-build. I am very pleased by the performance.

The people here reviewing this fan that say its too loud are using it improperly or they dont have any kind of PWM fan support. Yes, if you run the fan at 2000 rpm its going to produce noise, any fan will produce noise pretty much above 1500 rpm no matter what. These fans are rated at 2000rpm and the noise level of 31dB, but thats only at 2000rpm. These fans can drop way down in rpm, its not like Noctua is forcing everyone to run these fans at 100% all day long.

This fan move tons of air. Went crazy and swap out 4 fans with these. Turn the power on and saw my PC fly away.

These fans really SUCK! the air directly outta my case! I will nvr use any other fans in my builds ;)