Does this fit on Cooler Master Hyper 212X?

[GregoryElPadre]

And how "silent" is it?
https://amzn.to/2udfciZ

 

[AlienMenace]

Yes, it will. But you should use a fan that is "PMW" which is a 4 pin connector. That way, the CPU/motherboard can control the fan speed.

This fan that you post will run on high at all times.