The present disclosure relates to a receptacle connector, comprising a plurality of contacts for electrically connecting a plug connector and a substrate which is provided in an electronic device; an insulating part; a shell; and a sealing part for sealing between the electronic device and the shell, wherein the shell includes a shell body, and a first support part, wherein the first support part may include a first rear support member; a first outer support member which protrudes forward from the first rear support member; a first connecting member which is coupled to the front of the first outer support member; and a first inner support member which is coupled to each of the first connecting member and the shell body and is disposed spaced apart from the first outer support member.