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

This cooler in combination with the 2nd fan upgrade kit dropped my CPU temps from almost 80 degrees to 55 at most under high stress. They have been absolutely amazing and rarely even need to go above half of their potential RPM making my system as a whole way quieter than it was before. Not to mention the price for what youre getting if you do take the bundle, definitely worth the price, no more stutters no more hot CPU wonderful product

Bueno

Love this product. Easy install and super quiet. No issues at all!

I bought this to slap on the front of my NH-D15 so I could move the other two fans back a slot and have three fans, because Im stupid, and was curious to see if there would be much of a difference in temps. Well, there was. About 9c, so Im going to leave it on there.

Had to modify my original fans clips to work with this fan but it fits tight, runs quiet, and keeps my processor cooler than original cooler master when it was new

Cant go wrong with this one. High quality product for a great price. Ease of installation depends on how tight of a fit your case is, but its the same thing as the fan that comes with the cooler.

Used it with noctua cooler for push/pull configuration.

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

I am using the Noctua NH-U12S Redux on a Ryzen 5 5600 overclocked to 4.65ghz. Running Cinebench R23 at full load I was topping off at 81-82c before adding this second fan and now under full load running the same test, I max out at 76-77c. Thats a 5-degree drop for only $18.18 with tax.

This is a great fan that runs silent and keeps my PC cool. I actually ordered it to replace another brands fan on my heatsink and was able to rig it to fit on that heatsink. Im very satisfied with this fan.