The Enermax ETS-T40-White Cluster
Figure 4 illustrates the front of the cooler. The only part that is not white is the sticker with the manufacturer logo at the center of the fan.
Figure 5 reveals the side of the cooler. The fins are folded in the center, creating a partially closed surface. Notice the openings at the side of the fan, creating the manufacturer name.
The rear of the heatsink can be seen in Figure 6. You can install a second 120 mm fan here.
The top of the heatsink is visible in Figure 7. There are partially folded areas in the fins, that help to improve the heat transfer.