Connector system impedance matching

A connector system comprising:

• a connector receptacle comprising:
• a tongue having a top side, a bottom side, and a leading edge facing a connector insert when the connector insert is mated with the connector receptacle, the tongue comprising:
• a first plurality of contacts on the top side;
• a second plurality of contacts on the bottom side;
• and
• a central ground plane between the top side and the bottom side, wherein the central ground plane extends from the leading edge of the tongue to physically and electrically connect to a central ground plane of a connector insert when the connector insert is mated with the connector receptacle.

A connector system comprising:

• a connector receptacle comprising:
• a tongue having a top side, a bottom side, and a leading edge facing a connector insert when the connector insert is mated with the connector receptacle, the tongue comprising:
• a first plurality of contacts on the top side;
• a second plurality of contacts on the bottom side;
• a central ground plane between the top side and the bottom side;
• a first trace connected to one of the first plurality of contacts on the top side, the first trace routed through the tongue between the top side and the central ground plane, wherein the first trace is located a first distance from the ground plane for a first length and a second distance from the ground plane for a second length.

A connector system comprising:

• a connector receptacle comprising:
• a tongue having a top side, a bottom side, and a leading edge facing a connector insert when the connector insert is mated with the connector receptacle, the tongue comprising:
• a first plurality of contacts on the top side;
• a second plurality of contacts on the bottom side;
• a first central ground plane between the top side and the bottom side,
• wherein the first central ground plane comprises a first opening between a first contact in the first plurality of contacts and a second contact in the second plurality of contacts.