PLUG CONNECTOR COUPLED TO RECEPTACLE CONNECTOR

A plug connector according to the present invention is a plug connector coupled to a receptacle connector, the plug connector comprising: a conductor for signals; a ring-shaped conductor for ground, the conductor surrounding the conductor for signals; a ring-shaped insulator surrounding the conductor for signals and being surrounded by the conductor for ground, and insulating between the conductor for signals and the conductor for ground; a lower body; and an upper body coupled onto the lower body, wherein the conductor for signals includes a lower portion protruding below a first portion on the insulator, a middle portion inserted into a hollow portion of the first portion, and an upper portion protruding above the first portion, and the conductor for ground includes a lower portion protruding below the first portion and an upper portion surrounding the first portion, and the lower body includes a lower housing having a hollow portion that is vertically opened, wherein the upper portion of the conductor for ground is accommodated in the hollow portion, and the lower portion of the conductor for ground and the lower portion of the conductor for signals are exposed downwards through the hollow portion, and the upper body includes an upper housing facing the lower housing and having a hollow portion opened downwards so that the hollow portion forms a space around the upper portion of the conductor for signals.