Connector system with thermal surface

A connector system, comprising;

• wafers with a card slot in a front face, the card slot having a first side and a second side, the wafers supporting a plurality of terminals, wherein some of the terminals are positioned on the first side and others of the terminals are positioned on the second side;
• a cage defining a port, the cage having a front edge and a rear wall, the cage positioned around the wafers so that the wafers are is adjacent the rear wall, the port extending from the front edge to the wafers, the port having a port inlet at the front edge having a first inner perimeter and a module inlet with a second inner perimeter adjacent the wafers, the port transitioning from the first inner perimeter to the second inner perimeter at a location between the front edge and the front face, the second inner perimeter being smaller than the first inner perimeter;
• and
• a module including a body having a mating face, the body having a thermal surface on a first side, the module having a paddle card positioned in the body and extending from the thermal surface to a position adjacent the mating face and circuitry positioned in the body, the circuitry configured to emit at least 1 watt of thermal energy, the circuitry thermally connected to the thermal surface.

A plug connector, comprising:

• a body having a mating face at a mating end, the body being elongated and extending in a first direction that is parallel with an insertion direction, the body having a thermal surface on a first side, the thermal surface having fins that extend along the first side toward the mating end;
• a paddle card positioned in the body and extending to a position adjacent the mating face;
• and
• circuitry positioned in the body, the circuitry configured to emit at least 1 watt of thermal energy, the circuitry thermally connected to the thermal surface, wherein the thermal surface includes at least 50% more surface area than a corresponding flat surface.