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

Easy to install- lowered temperature by more than 5 degrees.

Bought this upgrade for the heatsink I installed in my new rig and this fan was super easy to install with its quick connect brackets. Fan feels well constructed and is very quiet so far. Id recommend this.

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

Did bring down my temps from the usual 70c on load in my hp omen case to 53c on my meshify c case that had 3 intake and 3 exhaust fans. Had in a push/pull config on the cpu..

Great upgrade to an already great cooler. This keeps my Ryzen 9 5900x nice and cool.

EXCELENTE

The Hype is real! Noctua products bring exceptional quality with low noise and dependable cooling! However, the size of the 120 mm fan is bigger than you may think. I’d recommend measuring clearances before buying them.

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.

Muy buen producto, llego a tiempo, lo ocupo con un i5 11400 que suele ser un procesador muy caliente y las temperaturas no pasan los 50°c y mientras no se ocupa sus temperaturas bajan hasta 20°c lo cual ed genial, recomiendo ocupar una configuracion de 2 ventiladores con el kit extra para una refrigeracion mas eficaz y menos ruidosa.

I was wary because they are suspiciously low priced, but the noctua quality is there. Would recommend.