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

I use two of these fans on my custom water-cooling loop radiator. At 700-800 RPM they are barely audible and I can cool my OC 6600k and 980Ti to about 9 degrees over ambient temp. They will go down to about 250RPM before stalling but really dont move any air at that speed.

I dont know where people get the idea that these are quiet. These are very loud even at 30% RPM. These fans were simply no better than your standard case fans.

The best fans on the market. If you are looking for a silent fan that will last for years this is it.

not an absolute power house but it moves good air without noticeable noise

Noctua in black, perfect. I added red Chromax vibration pads and have this as exhaust in my PC. It move almost as much air as the 200mm intake in the Phanteks case and I set a speed curve so it never goes over 60% and my system still stays super quiet.

It gives a speed of 2000, but the sound is very annoying

Wanted to upgrade my Noctua NF-F12 x 3 to a pair of these, but going from 22 db to 31 db is noticeably loud. Luckily these are PWM, so I can at least tune the speeds when its not that hot otherwise Id have to axe these. At full speed, a pair of these cool a few degrees better than 3 of Noctua NF-F12. But I dont know if thats due to moving the Noctua NF-F12 to exhaust ports. But well find out next summer.

Dont buy this just because you need a quiet system.

I have bought a ton of fans through out the years. This one is well built but and quiet but I have bought cheaper fans that push the same amount of air. I am hoping with the quality and higher price it will last longer. I would recommend this product.

excellent Fan