This disclosure provides an electrical interface module including a signal processor, a switch, and a connection component, wherein the signal processor includes a first interface, a second interface, and a third interface; the first interface and the second interface of the signal processor are connected with the connection component through the switch, and configured to output differential signals; the third interface of the signal processor is connected with the switch, and configured to output an enable signal; and the switch is configured to be controlled by the enable signal to be closed so that the differential signals are output through the connection component.