The Zalman CNPS12X
Figure 4 illustrates the front of the cooler. The heatsinks are round-shaped, but the heatpipes are disposed side-by-side inside them.
Figure 5 reveals the side of the heatsink, where you can see how large it is. Here we can see the three fans.
The rear side of the cooler is presented in Figure 6. Here is the fan that pulls the air from the second heatsink.