An electrical receptacle connector includes an insertion module, an adapting circuit board, and an adapting terminal module. The insertion module and the adapting terminal module are on the adapting circuit board. The insertion module includes first and second receptacle terminals, a grounding plate, and an insulated housing. The first and the second receptacle terminals are fixed on the insulated housing. First and second tail portions of the first and the second receptacle terminals are protruding from the insulated housing, respectively. The adapting circuit board includes first, second, and third soldering portions. The first, second, and third tail portions are soldered with the first, second, and third soldering portions, respectively. The third receptacle terminal includes a third tail portion and a fourth tail portion. The third tail portions are soldered with the third soldering portions, and the fourth tail portions are protruding from the adapting insulated member.