The Cooler Master Aero 7 Lite is a large aluminum/copper-core heatsink with a huge, turquoise, squirrel-cage blower on top. Cooler Master's unique blower design has a couple of advantages: It's efficient (since there is no "dead-space" underneath) and it's quiet. This unit also has a manual adjustment knob that can be mounted on either the front or back of a computer case.