Abstract: An electrical connector receptacle for allowing connection of electronic apparatus contained within a shielded enclosure to a multi-conductor wiring harness using a plug having a plurality of male pins arranged in a grid pattern is shown in which the connector receptacle includes a conductive connector receptacle shell defining a housing cavity having open front and rear faces dimensioned to receive the plug when inserted through the open front face. A multi-coplanar capacitor (MCC) layered structure having a front and a rear surface is connected with its front surface facing the rear surface of the connector receptacle and having a plurality of socket contacts arranged to receive the connector pins of the male plug. Separate individual pin planes define the MCC system each associated with a pair of ground planes connected to a common chassis ground.