A connector assembly includes a metal shielding cage. The metal shielding cage includes a cage body, a back cover and a grounding member. The cage body has a top wall, a mounting side and two side walls, the top wall, the mounting side and the two side walls together define a receiving space extending along a front-rear direction, the receiving space has a front opening toward the front and a rear opening positioned at the rear, the back cover and the grounding member are assembled at the rear opening of the cage body, and the grounding member is provided with an elastic grounding finger row toward the mounting side.