An electrical connector suitable to mate with another mating connector comprises an combined body, a grounding metal plate and an outer shielding shell. The combined body comprises a first terminal module and a second terminal module. The first terminal module has a first insulative piece and a plurality of first terminals. The first insulative piece has a first base portion and a first tongue portion. Each first terminal forms a first mating portion and a first soldering portion. The second terminal module has a second insulative piece assembled with the first insulative piece and a plurality of second terminals. The second insulative piece has a second base portion and a second tongue portion. Each second terminal forms a second mating portion and a second soldering portion. The grounding metal plate is interposed between the first terminal module and the second terminal module. The outer shielding shell surrounds an outer space of the first tongue portion and an outer space of the second tongue portion, and forms a mating cavity for insertion of the mating connector.