An electrical connector includes an insulative housing defining a front cavity for receiving and rear cavity, a terminal assembly assembled in the rear cavity, and a ground member. The terminal assembly includes an upper terminal module, a lower terminal module sandwiching a shielding module therebetween. Said upper terminal module includes a pair of upper ground terminals. Said lower terminal module includes a plurality of lower ground terminals. Said shielding module includes metallic shielding plate. The ground member is associated with the shielding module to mechanically and electrically connect at least one of the upper ground terminals and the lower ground terminals with the shielding plate.