An electrical connector (100) includes an insulative housing (3), a contact module (4) assembled to the insulative housing and a shielding shell (5) attached to an outer side of the insulative housing. The contact module includes a terminal group and a pair of paddle boards (42) disposed at opposite sides of the terminal group and electrically connected with the terminal group. Each paddle board has a grounding pad (4211). The shell includes a wall (510) parallel with a front face. The wall has a pair of forwardly extending grounding beams (52) respectively contacting the pair of grounding pads of the pair of paddle boards for grounding.