The Zalman CNPS11X Extreme is equipped with one 120mm PWM fan that rotates at 1000-1950RPM and moves air through a pair of thin aluminum fin towers set at 80-degress to each other. Five 6mm diameter composite wick heatpipes conduct heat from the copper base plate to the twin 100mm fin stacks. Zalman use composite copper heatpipes on the CNPS11X Extreme heatsink; there's no way to illustrate the wick structure on the inside of the heatpipes without destroying the CNPS11X Extreme in the process, so Frostytech did just that with the aid of a diamond saw.



Link: Frostytech