A cable assembly (100) includes a cover (40) defining a cavity (101), a circuit board (20) assembled in the cavity and including a first surface (201) and a second surface (202) lower than the first surface, and a cable (2) having a jacket (22) and a number of wires (21) shrouded by the jacket. Each wire includes an inner coat (210) and a conductor having a free end (211) exposed outwardly from the inner coat for being soldered to the first surface, with the inner coat disposed on the second surface.