Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)

Easy to install. Everything you need is provided. Fan is quiet and moves the air well at the same time. Very pleased.

What's not to like with Noctua's premium fans except perhaps the color? I love how quiet they are for how much air they move. And I love all the accessories, rubber isolation mounts, low speed adapter, cable adapters, etc. Even better after using these some of these fans for close to a decade in server applications I've never had one fail even in 7/24 full time use. That's hugely different than all the Chinese gamer fans where you're lucky if they last a year before they start making noise with their cheap bearings, etc. One Noctua will outlast half a dozen other fans making the Noctua a bargain.

This review is for both the 92mm and 80mm versions of this model, 4-wire units with speed controlled by the motherboard.If you're like many consumers, you accept the cooling fans installed by the manufacturer, and look at fans like this and their cost, and say "meh".Ironically, I'm am/was IT professional in the same situation...However, when I finally got around to buying a new server [versus hand-me-down units] for use at home, the fan noise that I accept at work [in a separate IT room] became unacceptable in our home office.Did some research and found this brand. Admittedly there are other makes/models out there and I'm approaching this as a fan newbie...I can summarize our findings by saying that my keen-eared better half questioned whether the server was actually powered on... that much drop in noise levels.Using the server's built-in hardware monitoring, fans are running at about 50% of top RPMs for the case fan [this 92mm] and at about 70% for the CPU fan [an 80mm] and temperature swings have abated along with the noise. These move the air a lot and with their blade design coupled with the cushioned mounts, do it very quietly.The fans ship with a short power jumper that shifts the fan speeds to an even lower range with a drop in maximum speed, and this works quite well, dropping fan noise to totally inaudible. Due to the presence of four 3.5" spinning drives in the server case [and their heat], I erred on the side of caution and restored the fans to their native speed range, with only a slight difference in noise, and no change in temperature/cooling.Based on experience so far, I can't praise this line highly enough...

This fan is very good quality and it's super silent.