PH-TC14PE is an excellent cooler. My system has a Core i7-6700K overclocked to 4.7GHz. Even under the heaviest load (e.g. a small FFT test in Prime 95) and a very smooth, silent fan curve that only reaches 100% when the CPU core reaches 85°C, the CPU never reaches 80°C - normally in the range of 72-75°C. That's the real deal. Under a much more typical workload, such as B. gaming, the CPU cores never exceed 65 ° C and the fans do not even reach 1000 rpm. The fans are 140mm rotary fans, but the mounting holes make them compatible with 120mm fans. If you wish to add an extra fan, clips are included but keep this in mind when ordering the fan. It's not that unusual. Cryorig and Noctua models share the same hybrid attachment points. The installation is not very difficult and in one case not too bad (in my case Fractal Design Define R5). However, for Intel systems there is an X-Bracket, some motherboard thru-bolts, and a couple of brackets. Then apply thermal paste, install the cooler and tighten the two spring screws. Then turn on the fan and you're done. I think it would actually be harder to install from a case due to the size of the cooler. I can already see having to remove it to remove the motherboard because it is blocking at least one of the mounting holes. I have attached a photo of the cooler installed on my motherboard. Note that this cooler will probably not fit if your motherboard has a PCIe x16 slot on top for a graphics card. I can't even install an M.2 drive unless I at least remove the graphics card and it completely covers all four DIMM slots. It's amazing. But it's so great. If you have some free space in your case, the PH-TC14PE is one of the quietest and most efficient CPU coolers you can get.