To mount many card-like supporting body members of an electronic module.

This unit is provided with a housing 5 provided with insertion slits 6 for the card-like supporting body members 3 and 4, a conductor plate arranged inside the housing is provided with a contact member 8 for the electronic module and connected to a connection panel 7 arranged at a housing end edge especially based on a PCMCIA standard, and in this case, a notch for an insertion chip card is provided on the side part of the housing 5. Then, in order to mutually combine the use in a wide range of the card-like supporting body members 3 and 4 of the electronic module, the housing 5 is formed so as to house many, at least two, card-like supporting body members 3 and 4 and to bring them into contact and the card-like supporting body members 3 and 4 are arranged on one or many planes by the combination of selective arrangements so as to be in front and at the back and/or be side by side and/or be mutually displaced and/or be piled up and/or be overlapped with each other.