A connector jack includes a housing, a receptacle shield, and a brace. The housing is configured for receiving a plug. The receptacle shield defines a receiving space for receiving the housing and exposing a plug receiving chamber of the housing to the outside, and includes two inward projecting prongs. Each prong has a base portion and a free end bent to form a ramped surface projecting inward into the interior of the receptacle. The brace is positioned between the receptacle shield and the housing, and has a main frame and two tabs respectively connected on the two ends of the main frame for abutting the prongs of the receptacle shield.