An electrical card connector includes a housing defining a front insertion opening, one or a number of terminal sets, a tray insertable through the front insertion opening into the housing and having one or a number of card-carrying portions, a recess, a stop wall at one side of the recess, a pin hole and a pin guide formed between the recess and the insertion hole, an elastic member, and an elastic interference device mounted in the housing and extending to the accommodation chamber for interfering with the recess and stopping against the stop wall and having an actuation portion. The elastic interference device is forced away from the recess and the stop wall for enabling the tray to be ejected out of the housing by the elastic member upon insertion of an insertion pin into the pin hole to push the actuation portion.