The design of the heatsink incorporates a solid copper core surrounded by aluminum fin vents. This type of configuration directs air away from the core to the extreme corners of the heatsink. The copper core does not extend to the top of the heatsink but is recessed inside the aluminum with a hollow column above it. A chrome fan shroud maximizes airflow directly to the core and moves heat dissipation away via the 4-way aluminum fin design.



Link: MTB