Abstract: An electrical connector, electrical connector assembly, electrical device and electrical interconnection system configured for use in electronic devices with direct connect orthogonal architectures. The electrical connector comprises: an insulating housing; at least one electrically conductive terminal, with at least a part of each of the at least one electrically conductive terminal being accommodated in the insulating housing; and a mounting flange, the mounting flange having a mounting hole for mounting the electrical connector to component PCB. A threaded connecting member may pass through the mounting hole and be connected to a first PCB. A portion of the mating interface part of the connector may extend below the mounting interface of the connector so as to abut an edge of the PCB.