An electric connector comprising a housing, a tongue module, a plurality of first terminals, a plurality of second terminals and the terminals assembled in the housing and tongue, and a metal shell assembled in the housing. The tongue module is assembled in the housing, and those first terminals disposed in the tongue module by insert molding. Each first terminal has an extended part buried in the tongue module. The lower surface of the tongue module has a plurality of second terminal receiving slots between those first terminals. The pitch between the two adjacent first terminals is greater than the width of the second terminal receiving slot. The upper surface of the tongue module has a plurality of the terminal receiving slots.