Abstract: A card reader for electronic devices comprises: a main body at least having a printed circuit board (PCB), a plurality of first and second slots arranged in a front portion of the main body, and a connector connected to the main body for outputting the data converted by the PCB. Data of a storage medium inserted into the first or second slot is converted and outputted to an electronic device, thus expanding the functions of the electronic device and upgrading data storage capacity and speed.

Abstract: The present invention is to provide a card reader, which comprises a circuit board including two interface modules, a data conversion module, and a control module, wherein the two interface modules can be coupled to a USB connector or a cassette connector compatible with PCMCIA respectively to enable the control module to couple the data conversion module and the related interface module together so that an electronic device coupled to the other end of the USB connector or the cassette connector can read data from or write data into a memory card inserted in the card reader via the related interface module and the data conversion module.

Abstract: An compact flash memory card adapter for various types of flash memory card is disclosed. The adapter comprises a compact flash memory card connector a stamp size flash memory card insertion seat and data conversion control circuit board. By means of the adapter, the data can be converted to data format of compact flash memory card via the format of memory stick, secure digital, multimedia card/MMC or memory stick duo. As a result, any stamp size memory cards, such as memory stick, secure digital, multimedia card/MMC or memory stick duo can be provided with electronic products having compact flash memory card, facilitating insertably replacement with various types of stamp size flash memory card.