An electrical connector comprises an insulative housing, a plurality of terminals received in the housing, an insulative stuffer and a conductive shield surrounding the housing. The housing comprises a top wall, a bottom wall, two side walls and a baffle between the top wall and the bottom wall. A receptacle and a plurality of channels are defined between the top wall and the baffle. A slot and a plurality of passageways are defined between the baffle and the bottom wall. Each terminal has an upper positioning portion and a contact portion both received in a corresponding channel, and a lower positioning portion received in a corresponding passageway. The shield is of a unitary construction and has a top panel, a bottom panel, a pair of front panels connecting the top panel to the bottom panel, and a pair of lateral panels together defining a space for enclosing the housing. A grounding panel is also connected to the top panel and enters into the receptacle when the shield is assembled to the housing; the stuffer has a main body for movably being received within the receptacle. In operation, the stuffer downwardly presses the grounding panel against an inserted flexible printed circuit to firmly clamp an inserted flexible printed circuit between the contact portion of the terminals and the grounding panel.