The AeroCool Extreme CPU Cooler sports a blue anodized fan shroud that will aid in keeping the 80mm fan secure during operation. The Extreme CPU Cooler has a total of 33 thin copper fins bonded to a copper base which can give better thermal conductivity than aluminum, but at a higher cost since copper is more expensive. The copper fins can be easily bent, so great care should be taken when switching the retention clips.



Link: MTB