We're used to the innards of devices being dominated by a single component, but those space hogs are usually batteries or power supplies.

Over a third of the real estate in the Co-Star is inhabited by the aluminum heat sink.

You may be asking yourself why the Co-Star has such a huge heat sink?

The answer lies in air movement. Without fans to circulate air, there is no forced convection. Therefore, the Co-Star must rely on conduction and natural convection to keep the processor cool.