A card edge connector (100) includes an insulative housing (1) having a pair of opposed side walls (11), a end wall (12) connected to the side walls (11), a retainer (15) and a reinforcement wall (16) both of which protruding outwardly from the end wall (12) in a lengthwise direction of the housing (1); a plurality of terminals (2) received in the housing (1); and a metal hook (3) retained on the reinforcement wall (16) along an upper-to-lower direction of the housing (1), and having a soldering tail (32) extending beyond the housing (1) for being mounted to a mother board. The retainer (15) is connected to the reinforcement wall (16) and defines a latch projection (153) extending from an inner surface for latching a daughter board.