The MCX4000™ heatsink is designed exclusively for Intel® Pentium® 4 processors. This product aims at offering the absolute ultimate performance in air cooling, and enabling users with the widest possible range of applications from ultra-quiet to extreme overclocking. The MCX4000™ heatsink can be used with either 70, 80, or 92mm fans.
Construction: hybrid copper base, thin aluminum pin heatsink. The 3/8" thick copper base provides mass for superior energy absorption. The thin aluminum pins promote increased turbulence for more efficient heat dissipation compared to traditional fin extrusions.
Patented Helicoid pin design (U.S. patent 6,469,898): pins are individually machined in an helicoid shape, to increase their surface area, and further enhance heat dissipation efficiency. ...