A card edge connector includes an elongated insulative housing, a number of terminals retained to the housing, and a metallic member formed integrally with the housing via an insert-molding process. The housing includes two lengthwise walls, a central slot defining by the two lengthwise walls, and two protrusions located at two opposite ends of the two lengthwise walls. The protrusions protrude upwardly out of an upper surface of the lengthwise walls. The metallic member includes two main portions retained respectively in the two lengthwise walls and a pair of connecting portions connecting therebetween. The connecting portions are located at the bottom of the metallic member.