Movable storage apparatus combined use of smart card capable of interfacing multi hosts and interfacing method of the same

The smart card combine portable storage device and thus the method of interface to support multiple host interface is disclosed. Combination Smart Card portable storage device according to the invention is characterized in that it comprises a plurality of signal pins, the mode determining unit, the smart card module, and a memory card module. A plurality of signal pins comprises a pin for mode determination. Mode determination section determines which one of the operation mode of the smart card mode, and a memory card mode according to the level of the initial input signal received through the pin for mode determination. Smart card modules communicate with the smart card from the smart card host mode. Memory card module support each other, and stores the memory card host and the communication and connection data in the memory card mode to interface with the memory card host using a different communication protocol. Combination Smart Card portable storage device and thus of the interface method according to the invention has a variety of memory card hosts, or a smart card advantages that can be directly connected to the host using different communication protocols.