Figure 4 illustrates the front of the heatsink. The fins are not plain; they have small folds to avoid a perfectly laminar airflow inside the heatsink that could spoil the heat transfer.

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Figure 4: Front view

Figure 5 reveals the side of the cooler. Notice the four 8 mm heatpipes connecting the fins to the base.

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Figure 5: Side view

In Figure 6, you can see the top of the cooler.

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Figure 6: Top view