Abstract: An assembly for use as a multiple pin electrical connector having a capability of filtering the electromagnetic interference from the signals passing through the pins of the connector. The assembly includes a filtering interface having an electrically non-conductive body provided with a plurality of generally parallel grooves for receiving respective, individual capacitors. The body has a plurality of pin-receiving holes, each hole communicating with one end of a respective groove. The holes, portions of the grooves, and an outer face of the body adjacent to the outer ends of the grooves are plated with an electrically conductive material. The capacitors placed in respective grooves complete a plurality of electrical paths between the holes and the outer face of the body, such plated outer face defining a ground plane which can be placed in electrical contact with grounded equipment by a screw or other attachment device.