PURPOSE: To obtain a memory card which can be inserted to/pulled-out of a full-size IC memory card slot so as to be used even when it is a half-size IC memory card.

CONSTITUTION: When an open/close type door 10 is inclined to a half-size IC memory card 7 side, length in an inserting direction becomes the length of the half-size IC memory card and it can deal with the half-size IC memory card slot. When the open/close type door 10 is opened, length in the inserting direction becomes the length of the full-size IC memory card and it can also deal with the full-size IC memory card slot. Therefore, a usage area as the memory card can be remarkably expanded.