Noctua NF-A20 FLX, Premium Quiet Fan, 3-Pin (200x30mm, Brown)

Absolutely awesome fan, and super quiet.I bought this because I'm already a huge fan (haha) of Noctua's products, and I needed the trifecta of super-low power draw (0.08A DC), very quiet operation (18.1 dB(A)), and massive MTBF (150,000 hours) for a thermal destratification application in a 4-season fiberglass travel trailer setup. This fan is connected to a 12v AGM deep cycle battery (85Ah, which can run it for something like 3 weeks, 24/7, before needing a recharge) and draws air through the under-bed storage area that otherwise becomes a huge coldsink if left unventilated. The approximately 88 CFM (@800 RPM) rating means the air under the bed platform is fully exchanged a little quicker than once per minute, and results in the temperature staying within 2-3F that in the rest of the trailer. Previous to this solution, at sub-freezing outside temperatures, it got easily 15-20F colder under there than the temperature in the rest of the trailer.If you need a quiet, super-efficient, durable fan that can really move some air, this is the one to get.

The experience with these fans are what you expect from Noctua. I had a little trouble with installation but probably just my own fumbling around. Once installed, the fans are super quiet and provide optimal airflow.

My media / work room is far from silent. With my projector running, HEPA filters and computer server with 10 NAS drives always spinning, its an acquired environment to say the least. Not clanky loud, but one wouldn't want to meditate in here. Anyways a few days ago, the noise level that I became accustomed started creeping into my conscious mind. The level went up, something changed. Luckily it was just a 200mm Cooler Master fan that came with my EATX case. I dont know how long it was twitching out, but it had a new vibration that threw off the balance of the case and lifted the noise level to unacceptable levels. I immediately removed the fan and ordered another on amazon.Due to the higher price and good reviews I got this fan. It arrived 48 hours after I ordered it. 25 minutes after it arrived it was installed and I was tossing the extra pieces and box in the attic (yes, it was supposed to have extra pieces). The installation was simple and the attachment points are really quite ingenious. All my other fans do a hard attachment with screws. these hang by soft stretchy cones. All the right places are padded on the fan and on the attachment points. Its only been running 30 minutes now, however adding it to my server added 0 noise to my room compared to how its been running since I removed the old fan. I suppose maybe if the room was whisper quiet I might hear something, but its far below the ambient noise level of my media room.

I bought this to replace the fans that originally came with my computer case, which were 6-7 years old. The fans were carefully packaged, each in its own box, with ample protection and wrapping. There were parts for a variety of different configurations, and using the instructions I had no trouble figuring out what I needed to do. The fans themselves seem very well made -- solid, with no dangling pieces. They snapped right into place with minimal use of tools. I've had the fans in place for several months now without any issues.

I'm kinda a fan of this.Jokes aside; standard high grade Noctua quality. Quiet, effective, and easy to install. I accidentally tore some of the rubber holders, but Noctua replaced it with no questions asked.

Being Noctua, I expected top-shelf quality. Sure it IS very quiet. I initially order 2 and TWO is what I need, but in 2 subsequent reorders due to misaligned blades, I got 3 out of 4 with badly aligned blades. Remember, A misaligned blade WILL act like a imbalanced blade to the bearings which WILL wear the bearings out prematurely. I cannot have that, They were to cool my equipment rack.I HAVE A THEORY: Assuming they were NOT bad when leaving the factory. I believe that they are being bent during transit. Spend LESS on fancy packaging and MORE on PROTECTIVE packaging.

I use the 30 and (40 sometimes) mm fans for my IoT work. I would have preferred a slightly slimmer version but no complaints. Noctua design is imitated by Shenzhen companies - imitation is the sincerest form of flattery?Comes with assorted cables for diverse connections, but one can run it off 2 wires too! The vibration dampening fasteners are proof of a solid engineering department at Noctua.

This is the best fan! Silent. Low speed. Very well made.It was perfect for my fix on an RV refrigerator that wasn't cooling well. Two of these fans zip tied to the exhaust grill and a thermostat switch on the condenser, and now the fridge cools like never before.