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

I use this as an exhaust fan in a home theater equipment cabinet. Very quiet and moves a lot of air.

I have a number of desktop systems at my home, all of which I have built and assembled etc. I use Noctua fans exclusively. Why? Well the quality is unsurpassed, they move a good bit of air and they are quite and they work as designed and the design / quality is the best Ive seen. I could care less about the color of the fans or if they have lights or other effects. I care about the function and quality of the item itself. Never any issues with these fans and their CPU coolers too.

Wow, this is so quiet that when I installed it to replace my foxconn 92mm exhaust fan (that was too loud and whiney) at first I thought it wasnt working. I can only hear it a tiny bit in the dead of night. It even lowered my cpu temp by 1 degree at heavy load. Im also using a Noctua NF-A8 PWM case fan on my Ryzen 3600 cpu so my HP Pavillion PC is now nearly as silent as my laptop (however my cpu temps went up a few degrees under heavy load with the lower powered Noctua 80mm fan so no overclocking with my current rig). Noctua fans are definitely worth the money for people who need a quiet computer.

Im running this in my ITX build. Its enough to cool my components without having me worry. My build: 8600k overclocked to 4.5ghz, EVGA 1080ti, 16gbx2 g.skill f4-3200c16-16gvk, asus z370i, and a thermaltake core v1. Im also running 1 Noctua NF-A20 fans in the front and 2 Noctua NF-A8 at the back. Been running great since August 2018.

Its nice.

Easy to swap out this taller fan on the Noctua L9-A cooler for slower fan speeds as the longer screws are included with the cooler.

I bought this to put a Noctua NH-U9S CPU cooler into a push-pull configuration. It works perfectly for that purpose.

Works Great!

I set out to make a nearly silent PC, in that I didnt want to go fanless, but I wanted it to have the fans running so slowly (or off) during normal operation that it was silent, and it was only during intensive activities that the fans would ramp up. Through that process I ended up using 5 different fan models from 3 different companies,including this NF-A9. Long story short, I prefer NF-Bx line from Noctua as my favorite and the best value. These NF-Ax series fans are slightly better, but not so much more so to justify the 50% (or so) increase in cost unless you need the vibration free mounting hardware it comes with. (The B series doesnt come with that nor with the extra extension and splitter cables the A series does.)

Super quiet, Noctua has excellent fans.