Connector assembly comprising receptacle connector and plug connector, and plug connector

A connector assembly according to the present invention comprises: a receptacle arranged on a substrate; and a plug coupled to the socket, in which the plug includes: a pin having one side electrically connected to a cable and having a contact portion disposed on the other side; a dielectric disposed outside the pin; a shield case disposed on an outer side of the dielectric; and a plug housing disposed outside of the shielding case, in which the receptacle includes a first hole, the dielectric includes a second hole in which the pin is disposed such that the contact portion protrudes farther than the outer surface of the dielectric, and the dielectric is located in the first hole, and the plug housing is disposed outside of the shielding case, in which the pin is disposed in the second hole such that the contact portion protrudes farther than the outer surface of the dielectric. The contact portion is in direct and elastic contact with the contact point of the substrate. 根据本发明的连接器组件包括：布置在基板上的插座；以及耦合到该插座的插头，其中