An electrical connector includes an insulating housing, a plurality of terminals, a main shielding shell and an auxiliary shielding shell. The insulating housing includes a base body and a tongue portion. The insulating housing defines a plurality of terminal grooves of which each includes a receiving slot passing through a rear surface and a bottom surface of the base body. The terminals are received in the terminal grooves with soldering portions disposed in the receiving slots. A bottom face of the soldering portion is in alignment with the bottom surface of the base body to be soldered on a circuit board. The main shielding shell surrounds the tongue portion with the terminals. The auxiliary shielding shell has a base plate positioned to the rear surface of the base body to cover up top portions of the soldering portions, and two bending plates attached to the main shielding shell.