Patent ID: 8308376

Claim:
A plug connector for mating with a receptacle connector comprising: an insulative housing having a base portion and a tongue portion extending forwardly beyond the base portion; a plurality of contacts defining contacting portions attached to the tongue portion for mating with the receptacle connector; and a metal shell defining a chamber with the tongue portion extending therein, a plurality of openings formed thereon for being locked in by a plurality of resilient fingers of the receptacle connector, and a plurality of embossments located at front of the openings and protruding outwardly of the metal shell for interferentially engaging with the resilient fingers; wherein the metal shell has a top wall covering an upper surface of the tongue portion, a bottom wall opposite to the top wall, and a pair of side walls connecting the top wall and the bottom wall, the openings are formed on the side walls, the embossments are integrally stamped outwardly from the side walls.