Electronic card and expansion card combination

An electronic card and expansion card combination, comprising:

• an electronic card being an Express card, said electronic card comprising a holder frame, said holder frame comprising a card accommodation space, an insertion slot located on one end of said card accommodation space and a positioning space located on an opposite end of said card accommodation space, a circuit board mounted in said card accommodation space, said circuit board comprising an electric connector located on one end thereof and set in said positioning space and electrically connectable to an external electronic apparatus and a set of metal contacts located on an opposite end thereof and electrically connected to said electric connector, and a metal casing housing said holder frame and said circuit board;
• and
• an expansion card movably set in said card accommodation space, said expansion card comprising a flat sliding holder base and an expansion plate, said flat sliding holder base being received in said card accommodation space and movable in and out of said insertion slot of said electronic card, said flat sliding holder base comprising a receiving space defined in a bottom side thereof, an adapter terminal set mounted in said receiving space and adapted for contacting the metal contacts of said circuit board when said flat sliding holder base is moved out of said insertion slot of said electronic card, a guide groove longitudinally extending along a first lateral side of said receiving space, and a coupling structure located on one end of a second lateral side of said receiving space, said expansion plate comprising a coupling structure pivotally coupled to the coupling structure of said flat sliding holder base for enabling said expansion plate to be turned in and out of said receiving space, an expansion space defined in a bottom side thereof, said expansion space forming with said receiving space a chip card insertion space for the insertion of an external chip card when said expansion plate is turned out of said receiving space, a plurality of terminal slots arranged on one end thereof adjacent to the coupling structure of said expansion plate corresponding to said adapter terminal set, a matching terminal set mounted in said terminal slots and kept in contact with said adapter terminal set for the contact of metal contacts of a chip card being inserted into said chip card insertion space, and a guide groove longitudinally extending along one lateral side of said expansion space to match with the guide groove of said flat sliding holder base for guiding insertion of an external chip card into said chip card insertion space.