Abstract: The connector assembly, according to the present invention, comprises: a receptacle arranged on a substrate; and a plug coupled to the receptacle, wherein the plug includes: a pin having one side electrically connected to a cable and having a contact portion arranged on the other side; a dielectric arranged on the outside of the pin; a shield can arranged on the outside of the dielectric; and a plug shell arranged on the outside of the shield can, wherein the receptacle comprises a first hole, the dielectric comprises a second hole in which the pin is arranged, the pin is arranged in the second hole such that the contact portion protrudes farther than the outer surface of the dielectric, and the dielectric is positioned in the first hole so that the contact portion is directly and elastically in contact with a contact point of the substrate.