An electrical connector includes a terminal module including a base, a mating tongue, a row of first terminals, a row of second terminals and a shielding plate. Terminals comprise contacting portions, middle portions and leg portions. Each row of terminals comprises three pairs of differential signal terminals, and grounding terminals and power terminals. The shielding plate defines a first row of openings corresponding to the contacting portions, a second row of openings and third row of openings both corresponding to the middle portion. The first row of openings are aligned with the contacting portions of the first and second terminals in a vertical direction and the second row of openings are at least aligned with gaps between every two adjacent terminals while the shielding plate defines no opening corresponding to the middle portions of the three pair of differential signal terminals so as improve shielding performance.