Noctua NF-A4x20 5V PWM, Premium Quiet Fan, 4-Pin, 5V Version (40x20mm, Brown)

Excellent fan but could have been a lower price.

These are the best fans ever. Very quiet, easy to spin, move a lot of air and made of quality materials. They are a little on the expensive side, but thats because quality is more expensive.

Installed this fan on to a nVidia Jetson Nano and fit perfectly. I did get a case for the Jetson Nano that provided the appropriate screws that properly mounted the fan with though. This fan kit doesnt come with those as the parts that come with the fan are more used for mounting to a something like a computer case.

Quieter then the Noctua 40x10mm fans and better air flow

Very high quality fan. I needed to cool down a bit a bucket converter(step down from 36V to 12V), and this fan keep the converter very nice and cool. Too much heat is not good for you baby, that how the song says?

I am really impressed with the amount of additional cables, connectors, and mounting options provided. I ordered the fan to place inside of a fursuit (costume) head. It is very quiet, if even one person is talking you cannot hear it running. The air flow is low, but it is constant and hands free so that is very nice. I thought it might be much louder than it was which is why I ordered the PWM version. Since it is *so* quiet theres no reason to not let it spin at full speed unless your application is severely power limited.

Great cooling fan and so quiet.

I’m using this to cool my Jetson Nano. It works great and it’s so quiet I have to look at it to see if it’s running.

I was replacing the 5v fan in a Netgear switch to be more quiet, but these 5V Noctuas barely move any air (Tried both the 4-pin and 3-pin version of the 5v Noctua.) I ended up putting in a 12V fan that starts at 5v (not Noctua) and it moves more air than the 5v Noctua without too much noise...

Works well, a bit tricky to install and I dont know what to do with all the leftover connectors.