The connector assembly for a printed circuit board includes a set of differential signal wires, a set of alternating current (AC) power wires, a ground wire, and a connector. The set of differential signal wires includes a plurality of signal wires, and each of the signal wires has an insulator and a conductor. The set of AC power wires includes a plurality of power wires, and each of the power wires has an insulator and a conductor. The connector includes an insulated shell and a plurality of conductive pins received therein, and each of the conductive pins has a nipper. An end of each of the set of differential signal wires and the set of AC power wires is electrically connected to the printed circuit board, and the other end thereof is electrically connected to the nipper.