provided is a large current female connector for high - speed transmission , comprising a case , an insulating body , and an upper terminal group and a lower terminal group disposed in the insulating body . the insulating body is disposed in the case . a power terminal in the upper terminal group and a corresponding power terminal in the lower terminal group are connected to form a big power terminal . an insulating body trench for accommodating the big power terminal is disposed on the insulating body . the present invention has advantages in that the fabrication process is simple and cost effective , and a large current transport is possible .