A cable assembly (100) comprises a mating member (4), a print circuit board (2), an LED (3) attached to the print circuit board (2) and a cable (6) having a positive wire (61) and a negative wire (62) connected with the mating member (4). Said positive wire and negative wire are placed on one surface of the print circuit board (2), with the LED (3) set on another surface, the positive wire and negative wire each respectively has a inner conductor (611, 621) soldered to a corresponding soldering pad on the one surface of the print circuit board, conductive traces (220, 221) are defined on the other surface of the print circuit board and connected with the LED, the soldering pads electrically connects with corresponding conductive traces by vias (210, 211) through the print circuit board.