An electrical receptacle connector includes a plurality of lower terminals, a lower insulator, a shielding plate, a plurality of upper terminals, an upper insulator and an outer insulator. The lower insulator partially covers the lower terminals and exposes a lower contact area of a lower contact segment of each lower terminal. The shielding plate is assembled onto the lower insulator. The upper insulator partially covers the upper terminals, exposes an upper contact area of an upper contact segment of each upper terminal, and is assembled onto the lower insulator. The outer insulator partially covers the above elements, and exposes the lower contact areas and the upper contact areas.