be quiet! Pure Rock 2 Black, BK007, 150W TDP, CPU Cooler, Elegant Black Surface, HDT Technology

It’s quite a large cooler, so make sure you have a case that can accommodate it. It’s incredibly silent. The only time I hear this fan is at first boot, when I turn the machine on. It’s of great build quality. Thermals are great so long as you use correct thermal paste and remember to remove the plastic covering on the base of the cooler. The mounting system was a bit tricky to install, only because I have an older motherboard. Despite this, I was able to fit the cooler perfectly. It’s compatible with a lot of different motherboard models, including older ones. It’s quite expensive but for what it’s worth, it keeps temps low under stress, is dead silent, and looks great!

This cooler replaced a severely underperforming Intel heatsink that came with the 9400. It's for my "hackintosh" which sports said chip (i5 9400). Day to day tasks were fine with the included cooler but for rendering video or doing anything else that was CPU intensive, the stock cooler would spool up and sound like an electric leaf blower. This cooler took that problem and stomped it flat.The CPU and this cooler are on a Gigabyte Z390 Designaire motherboard (nice board and it has thunderbolt too!) along with 32 GB of RAM. It runs dead silent and is very responsive.For installation, it wasn't too bad, just a little tedious. But that's with most coolers, really. It does involve taking both panels off of your case (each side) to access the back of the motherboard in order to fit the cooler's back plate. The instructions provided are adequate enough.You can probably get more bang for your $ by going with Thermalright but I don't know how quiet their coolers are compared to Be Quiet's. But it's definitely that: QUIET!It's best to chunk those stock coolers to the side and spend a little extra dough to get a good cooler so that you won't think your computer is about to grow wings and take off.

I used this cooler to replace a Corsair AIO that failed. This PC is over 10 years old and sports and an Intel i7 3770K overclocked to 4.2ghz. I needed something cheap and reliable to get by since this pc is a dinosaur.For an air cooler this thing performs incredible with max temps ~63-68 degrees C under heavy loads. It is near silent as well.

Mounts very well to CPU and MotherBoard and quality and engineering of heat sync and fans themselves is fantastic!BUT.Holy moly! Getting the cheap included fan clips on is a nightmare and a half! It’s like ordering a steak that is perfectly cooked, just right shade of red inside, and delicious and you are serve it with a fork with poo 💩 on it to eat it and there are no other forks!To utilize the fan clips, they do not stay on the fan side pre-mounting, you need both hands or they won’t stay where they are supposed to clip in the fan as well without you putting pressure on them so you need a good amount of space to work with them so you can forget trying to put the fan clips on while the heat sink is already installed installed inside the case as many of us need to reposition and replace things later on a build.I had to remove the video card and top case fan to finally finagle the fan clips (while keeping them clipped to the fan) onto the heat sync. It’s almost ironic they fit loosely once they are on but I believe that is by design as it does not seem to hamper their operation, however it is quite a feat and tough operation to squeeze them on and then are basically just a bend wire. They also bend the edges of the fins of the heat sync in more than is like and compared to competitors I’ve used.It’s all about the FAN ClIPS! Everything else is so good!!