Abstract: A connector is able to accommodate an object (for example, a tray on which a card is mounted). The connector comprises an ejection member and a backup portion. The ejection member includes a receiver and an ejecting portion. The receiver is able to be pressed by an operating member (for example, a pin). The ejection member pivots from an accommodating position to an eject position when the receiver is pressed. The ejecting portion ejects the object when the ejection member pivots toward the eject position. When the receiver receives an excessive force from the operating member, the backup portion is brought into abutment with the receiver so as to backup the receiver.