Best air cooler on the market. That said it is huge. If you can fit this heatsink in your case, get it. You won't need to think about getting a better one. You can just move on to worry about something else because for air cooling, this is as good as it gets. No water = no worries.

This is my first time using the gigantic Noctua CPU cooler the NH-D15 and it keeps the i7-8086K nice and cool. If you want to run 140mm fans x2, you're gonna need low profile ram.

This cooler is huge… I expected it to be big, but nothing prepared me for the size this thing actually is. I had made sure my case and RAM would all be compatible with it, so I didn’t really worry about its size. It’s not the prettiest but it’s an amazing performer and is hidden inside the Define S case so no-one can see it. Despite its size it was an absolute breeze to install and is genuinely silent in operation… I love it!

This thing is a BEAST and does not fit too many cases but it out performs many AIO coolers. I don't love the colors but Noctua is all about quality and low noise so I went "function over form" on this

Keeps thing under control at all times, without being loud. Without the case fans running, its nearly inaudible with the panels OPEN.... wow.

This thing is HUGE!! With the 2nd fan installed you couldn't even really see the RAM much. Shouldn't have any trouble cooling the system and never let the CPU get over 60C during all the tests. Super quiet fans. Never heard them running sitting right beside the case with the cover off.

Immensely surprised at how well it does its job, puts my current all-in-one liquid cooler to shame.

Tried my best to use the stock cooler of Ryzen 3600. But it just did not work out. Normally the temp is around 50c, under load playing light games is 74c, which is fine I guess. But under heavy load, when I was playing Witcher 3, a 2015 game, the peak temp can reach 100c. Insane. Get the best air cooler I can find under $100, heard a lot of good things about it. It works. Now the cpu temp is always below 50c. incredible.

Super silent and can cope with 1.3 volt from devil canyon. give this beast a third fan for maximum silent@ lower rpm

The cooler has lived up to it's name. When at stock performance it keeps my cpu below 61c and this is while playing Dark Souls 3 in 4k.