An electrical receptacle connector includes a metallic shell, a terminal module in the metallic shell, a baffle plate at a rear portion of the metallic shell, and conductive ground legs. Accordingly, the baffle plate is at the rear portion of the metallic shell, and the conductive ground legs are at two sides of the metallic shell. Therefore, during the connector transmits data, the produced noises are shielded by the baffle plate, and the current formed by the noises is guided to a circuit board through the conductive ground legs, thus the noises are grounded and diminished. The conductive ground legs are adjacent to the baffle plate. Hence, the current flowing through the baffle plate is guided to the circuit board through the conductive ground legs, with a shorter path. Therefore, the current would not have antenna effect easily on the path, and the noise spreading can be reduced.