Noctua NA-FK1 Redux, Second Fan Upgrade Kit for NH-U12S Redux Cooler

Was missing the Y-splitter and the low noise adapters. I wasnt planning on using them, but I did pay for them..

rubber pads not for this model

best quality. Works greats. No issues.

Mounts the same way as the CPU fan that comes with the cooler. One thing to note for those that are concerned with aesthetics, the rubber pads on this fan are slightly thicker than the ones one the ones that come with the cooler. Theres a slightly larger gap, but either thats intentional or I just happened to get some slightly thicker rubber pads. Otherwise, doesnt bother me too much.

I bought it thinking it was a second fan upgrade for the redux cooler, but not only is the fan different but the noise reduction pads are bigger than the stock ones. either way its a good purchase just be ready to put it on patiently

The fan is quite silent under 1500rpm and is a really good fan for keeping your processor cool. The brackets only fit on nocrua coolers, so if you have any other cooler youll meed their specific brackets in order for this to work.

Used to add 2nd fan to an NH-D15 where the included 2nd 140mm wouldnt fit due to case width issues. This 120mm fit fine. Using the supplied 2 fan splitter I now have about a 4-5c lowering in temps across idle all the way to full throttle.

I have an Intel I7-12700k that is overclocked and adding the second fan keeps the temps more than under control. The Noctua CPU fan is quiet and efficient. This is so much better than having an AIO stuffed in the case.

Works as expected.

I bought this fan in addition to the NH-U12S cooler, with the single fan the cooler comes with my temps were around 38-45 at idle and around 60-65c under load. With this fan installed in a push-pull configuration, it dropped to around 35-40 at idle and around 50-60 under load. So for $16, it did help to drop my temps a few degrees, which i think is well worth it.