A cable assembly includes an electrical connector, a flat cable, a flexible printed circuit electrically connecting the flat cable to the electrical connector, and a spacer fastened on the electrical connector for supporting the flexible printed circuit. The electrical connector includes an insulation housing and a plurality of terminals receiving in the housing and each of which has an tail exposed out of the housing. The flexible printed circuit includes a vertical connecting portion connected to the terminals of the electrical connector and a horizontal connecting portion separated from the vertical connecting portion and connected to one end of the flat cable.