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

As everything Noctua (In my personal experience, anyways) these fans are great. I bought 4 of these to use as exhaust on my Core x9 case, and they are incredibly silent. Havent got the Core x9 just yet, so I have them installed on the HAF 922 it will be replacing. I have my motherboard controlling the speed of the fans, and at 1500rpm, they are quieter than the NF-A15 (the 1500rpm version included with NH-D15) running at 100%. So I guess the Three-phase motor tech really pays off, since it is not as noticeable as a fan that was silent already. Now the other fan is annoying me. So, I want to get a few more to remove the two NF-A15s I have in my computer.

Great, quiet fan. Great when used on a radiator.

Works as advertised and to its name! Perfect set of fans! Quiet and Powerful! <3

Excellent power not loud at all.

Great fans, keeping my computer cooler than stock fans!

The fans push a ton of air, more than any fan ive ever owned, but at high RPM made a loud hissing or buzzing sound, I tried different power setups and could not get rid of the buzzing, at lower RPMs there is little to no buzzing but about 1400+ it gets louder and louder until it is louder than the actual fan or air moving through. They are very expensive at 30 bucks a pop and I was expecting more.

When I received my fans one of the boxes had greasy finger prints on it and the box looked like it was opened. I removed the fan and it was missing three of the vibration dampeners on one side. I informed Amazon of the discrepancy and had no problem replacing the fan. I would recommend these fans. I put two of these on my NZXT AIO water cooler and they do an excellent job.

How do you go wrong with Noctua?

Had an even higher static pressure than I expected, and is the quietest fan in the case.

Used Noctua fans for `bout six years, these have better cfms and static pressure than my originals. Bought to replace the stock Corsair H115i radiator fans after investigating them.