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

Works as expected.

Dropped my temperatures a further 4 degrees Celsius compared to my single fan unit. Highly recommend

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.

best quality. Works greats. No issues.

Its a good little kit, it helped my cpu temps. My only real complaint is how thick the anti-vibration pads are. Theyre twice as thick as the pads that come with the original cooler, and the chromax vibration pads I had bought for some additional case fans. As far as I can tell theyre made this thick specifically for this kit and it made installation more difficult than it needed to be. It also causes the fan not to sit directly against the cooler fins. The coolers original fan does sit flush, so Im not sure why they make this kit so that the new fan doesnt.

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

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.

it comes with everything including fan clips. man. thanks noctua. This is how they all should come though.

A simple but effective and easy to use add in kit. Well worth the money for the boost in performance.

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.