Patent attributes
An extension-type access device used in an information-and-electronic device includes a peripheral circuit board, an extension device set, a first connector, an isolating sheet, and an upper cover plate. An upper shell and a lower shell for clamping and securing the extension-type access device are further provided to make it become an access device module that can be inserted and taken out of a memory card. The extension device set consisting of a plurality of extension devices is secured on and electrically connected to the peripheral circuit board. The first connector is brazed to and electrically connected to the peripheral circuit board. The isolating sheet covers on top of the extension device set. The upper cover plate being a reverted-U shaped covering body has a plurality of cassette portions disposed on the top plate thereof. Through the execution, the invention has the efficacy of using a multiplication of memory cards at a time to make the usage of the memory cards more convenient.
