A card edge connector includes an insulative housing defining a central slot expanding along a transverse direction with a plurality of contacts disposed therein, and a pair of side arms disposed at opposite ends thereof. A pair of card ejecting devices are assembled on the side arms, each comprising an ejecting member attached to the side arm and an operation member which can rotate in a plane perpendicular to the card edge connector. The ejecting member comprises a block portion projecting into the central slot and moving along a front-to-rear direction perpendicular to the transverse direction by the urging of the operation member.