Card Reader Card Reader is a kind of special equipment. With card slot for insert a memory card, a port can be connected to the computer. To fit a memory card into the card slot, connect the port with computer, and then install the necessary driver. The memory card will be set as a removable memorizer, which can read and write the memorizer via a card reader. USB reader series with nice profile, good compatibility, stability and reliability, extensive use, it is your relied assistant.