The NZXT Respire T20
Figure 4 illustrates the front of the Respire T20, where the 120 mm fan goes.
Figure 5 reveals the side of the cooler. Notice that the center heatpipe, which is 8 mm in diameter, is larger than the side ones, which are 6 mm in diameter.
Figure 6 unveils the rear side of the cooler. You can see the “step” between the sides of the fins.
In Figure 7, you can see the top of the cooler, where the tips of the heatpipes are visible.