Circuit on a printed circuit board

A circuit board comprising:

• a first signal plane;
• a second signal plane;
• a first signal connector pin extending through said circuit board, substantially perpendicular to said circuit board;
• a first voltage connector pin;
• a first reference plane disposed parallel and adjacent to said first signal plane, said first reference plane capacitively coupled to one or more signals of said first signal plane;
• a second reference plane, disposed parallel and adjacent to said first signal plane, said second reference plane capacitively coupled to the one or more signals of said first signal plane, said first signal plane disposed in parallel and between said first reference plane and said second reference plane;
• a voltage island electrically connected directly to said first voltage connector pin at said second signal plane, said voltage island capacitively coupled to said second reference plane;
• and
• wherein said second signal plane is disposed parallel and adjacent to said second reference plane, said second reference plane is disposed in parallel and between said second signal plane and said first signal plane, said second signal plane comprising said voltage island, said voltage island electrically connected directly to said first voltage connector pin at said second signal plane.