An electrical connector includes an insulative housing (1), a number of terminals (5) received in the housing, an inner shield (2), an outer shield (3), a spacer (4) and a rear shield (6). The insulative housing includes a base portion (13), a pair of parallel tongues (111,112) extending forwardly from the base portion, and a number of passageways (12) defined in respective tongues for receiving the terminals. The inner shield substantially encloses the tongues and includes a number of tabs (24, 25, 26) formed on side walls (21), a top wall (22) and a bottom wall (23) thereof, respectively. Each tab extends outwardly from the walls of the inner shield for electrically contacting with a shielding means of a mating complementary connector.