An electrical card connector (100), used for receiving a card (6) having a cutout (61), includes an insulative housing (1), a plurality of contacts (2) retained in the insulative housing, a metal shield (3) covering the insulative housing to define a card receiving room (8) and a card inserting port, and an ejector (4) assembled on the insulative housing. The metal shield includes a main plate (31) and a pair of vertical walls (32) extending from the main plate. A ridge (321) is formed at one of the vertical walls. The ejector includes a slider (41), a spring member (42) and a pin member (43) for cooperatively guiding/ejecting a card. The slider has a main portion (41) extending along the card's insertion/ejection direction. The main portion forms a protruding portion (412) facing toward the card receiving room and a confronting portion (413) facing toward the one vertical wall. The protruding portion is engaged with the cutout of the card when the card is moved into a locked position in such a manner that the ridge leans against the confronting portion and presses the slider towards the card receiving room.