Instead of passively allowing the component to cool, the two fans speed up the process by acting like a heat sink and pull the hot air away from the component which promotes longer lasting equipment. The addition of the four front blowers provide even more exhaust out.
VARIABLE VOLTAGE POWER SUPPLY
Each unit comes with a variable AC to DC voltage regulator. This means that you can switch the fan from 7 - 12V and control the speed of the fan for to the specific situation.
With special high-tensile rubber that acts as a damping system, you can adjust the direction of the fan to either pull air out or push air in - which allows you to pull air up and away if sitting on top or down and away if component is on top.