Prolimatech Super Mega CPU Cooler Review
 

The Super Mega CPU cooler is a revised version of the older Megahalems from Prolimatech, a hybrid of copper and aluminum. An extra set of spring screws is included to install extra pounds of pressure for an even tighter contact between the heatsink base and the CPU.

http://www.madshrimps.be/articles/article/1000104