Noctua NF-A15 HS-PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black)

It is a bit slower than the stock fan, but it makes cooler look so much cooler.

While the fan isnt as quiet as Id hoped it would be, it does move quite a bit more air than the stock 120mm NZXT fan I was using. The fan did in fact fit the at the top of my NZXT H510i case (thought I was initially worried that it would not)

I got a few of these and it definitely work as an exhaust case fan. But for the front, its off. Since I had to use my 120mm mounts, theres now a gap in between the 2 fans. It works but doesnt look great. Thankfully I have an all black build so it isnt noticeable. I may make a diy 120mm to 140mm though so I can make it fit correctly on my case.

I added this fan to my U14S Noctua CPU cooler so I could have a push/pull configuration. I put the stock brown fan that came with the U14S in the pull/back position so I could enjoy the superior looking black color of this fan. The fans themselves are fantastic. I am running an i7-9700K overclocked to 4.9 Ghz across 8 cores. The chip can get toasty. In BF V, I was averaging 84-85C before I added this second fan. I am now topping out at around 76-78C in BF V. Ive long heard Noctua was legendary for air coolers - theyve lived up to their reputation.

Awesome fan, loses a star for not having a clip for mounting to a cpu cooler tower. As far as I can tell those clips are not available to purchase separately from a full nocturnal cooler anywhere.

Cooling an overclocked Threadripper 2950X with a Thermalright Silver Arrow TR4. I just leave the RPM on full since its ~1300 rpm and is almost silent in the case. Allows the CPU to take full advantage of PBO with 4.4 GHz partial loads and 4.1 GHz all core loads. Thank god Noctua started making black fans.

-Silently blows air

Took a $90 cooler and made it $150, but kind of worth it, since that brown is hideous. I put two fans on that cooler and get decent thermals for a hot room upstairs. I have it in a push-through config. Where the the intake is one one side and the exhaust is on the other side in line with the airflow of my case. Barely cracking 50C running Cinebench or any other benchmarking test for that matter since I paired it with a giant case as well. They work great, dont really push a lot of air. I have all noctua fans where I can (save GPU and PSU, didnt have control over those fans). And while its really quiet at full blast, its barely pushing 3MPH of wind. My 140mm Industrial is pushing nearly 6MPH and both are technically the same size. Didnt know giong from 2600RPM to 3000RPM was a drastic change like that. OTHER than that it was pretty easy to install. The clips can be finicky, but are secure when on. Helps go with the blackout theme I was going for with this case, even though the heat sink is still very much silver, and theres silver on the Zenith II Extreme Alpha, so its not a total blackout, but good enough. As long as it works and keeps tems down, thats all I care about. And it does do that, well.

Love the fans. Note, they do not spin as fast as the regular brown NF-A15s but that is fine with me, they are working just fine.

GOOD ITEM ..OVER PRICED. NEEDS TO SPIN FASTER