The Noctua NH-U12P SE2
Figure 4 shows the front of the cooler. The fins are well-spaced, and the heatpipes are nickel-plated for a nice appearance.
Figure 5 reveals the side of the cooler. The fins are folded in the center area, creating a partially closed panel.
Figure 6 shows the top of the cooler, where you can see the shape of the fins and the tips of the heatpipes.