A complex input/output port connecter is applied in an electronic device and electrically connected with at least an input/output module. The electrical connecter includes a frame and a plurality of signal lines. The frame accommodates at least one input/output module. The signal lines are arranged on one side of the frame in a direction perpendicular to an assembly direction of the input/output module and electrically connected with a circuit board of the electronic device. The input/output modules are installed within the frame freely according to usage requirements and electrically contact the corresponding signal lines to form an electrical connection.