Steve Sedlmayr
Bought these with some NF-S12B's to put in a new system for the living room in a Noctis 450. I've been a faithful Noctua fan for a many builds and have always gotten great performance out of their products. However, the main product line's color scheme has always bothered me. I also have a machine full of the Industrial PPC line, which do a phenomenal job at cooling and look great in black; but sound like a jet taking off.I wanted something quiet and high-performant that matched the black and silver theme of this build, as it has a Rampage IV Black from my workstation, which I was upgrading, and Corsair Dominator RAM. I was pleased to discover this product line from Noctua, which promised significantly lower noise profiles than other 'silent' fans. After installing these, I was really impressed with how quiet they were. Then, having an Asus motherboard, I ran the Fan Expert tuning system and then set it to the Silent profile. Between the fans and the software, you literally can't tell the computer is on now if I've say, switched source on the TV to another device like our PS3. The Noctis has a red light that it casts on the floor, and we have to use that to verify the machine is on if it's asleep or the source is switched. The machine is that quiet.We installed a Vive on this machine, and the noise from the base stations, which isn't very loud... is * louder than the computer *. The PS3, which used to be the quietest device in the room, and is indeed fairly quiet, especially compared to, say, the XBox 360, now sounds like a feight train by comparison. Even at full voltage, as other reviewers have said, these fans will still be quieter than any other fan on the market.I've run Prime95 with Real Temp GT and the fans got just barely louder under load, while CPU temps remained relatively frosty thanks to the H100i I have installed.So...Pros:- At ~$15, much cheaper than many silent fans, some of which cost $30 nowadays, and cheaper than most other Noctua fans- Truly silent operation- Noctua build quality- A cool color scheme that, being gray, truly will match any systemCons:Truly, noneDo note that this fan is just that, a fan. It comes with screws, but none of the dampeners, voltage regulating cables or extension cables most Noctua fans come with. Personally, I prefer that, as that stuff (other than the dampeners) usually ends up in a junk box somewhere. I installed these with a set of compatible Noctua dampeners, the NA-SAV2's, in red. (Note that this fan is not compatible with the corner-style NA-SAVP1 dampeners).If you want a truly silent fan that will last forever, get this fan. You will * not * be disappointed. This review applies to the NF-S12B as well.
DL
This fan was the quietest that I could find. Being used to exhaust warm air out of a audiophile cabnet, hence the 900 rpm and low decibel requirement. 2 of them move quite a bit of air as expected being 140mm also like the 150000hr mtbf should last along time. I use a 12v temp adjustable controller with these. So far so good.
Mike S
Powerful and pretty. I like the matte gray, even if I almost never see them. I've got them plugged in to a Fractal Design Define R5, 2 in the front, one on the bottom, and one on the side. Definitely stronger than the stock fans that came with the case, but... it's weird, the stock fans are quieter in the front, but these are quieter in the bottom and side... something strange about the airflow from the stock fans combined with the front grates. Who knows, I'm no expert in airflow and sound distortion. But these things work very well, they push a lot of air and keep my case very cool. The voltage control available on the case works perfectly fine with these fans (though you can only hook 3 up).
L. P. HAWLEY
These fans are the best and quietest fans I've ever installed in a PC case...ever. After installing them, I had to check to make sure they were spinning. My old original case fans had become very noisy after 5 years and these were the perfect solution for a replacement. These fit the exhaust port out the back of the case and I added another on the top for exhausting upward. I placed another in the front to pull air in as well. Removing the old fan from the front of the H600 was a bit of a pain but I managed it. Adding these to the front was easier by far with the smaller form factor. The original front fan was a 200mm. It was fairly quiet but the bearings were going. I love this PC case so having great fans for replacements will let me continue to keep using the case for years to come!