An electrical connector for mating with a plug and mounting to a printed circuit board, includes an insulative housing defining a rear base and a front mating tongue, two rows of terminals received in the insulating housing and a shielding plate interposed between said two rows of the terminals. The terminals include contacting portions exposed upon opposite surfaces of the front mating tongue and board-connecting legs extending out of the rear base for mounting to the printed circuit board. The terminals are categorized with differential pairs of signal and grounding terminals mixed up with one another for coupling to the plug. The shielding plate includes at least one grounding finger split therefrom and a grounding leg for mounting to the printed circuit board. Each grounding finger is disposed between two adjacent differential pairs and parallel to the contacting portions of said terminals.