PURPOSE: A system for expanding movement used for a micro device is provided to expand displacement with a simple structure, thereby reducing the number of probes in a data storage system. CONSTITUTION: A power generating unit(31) generates power in a certain direction. A first power transmitting unit(32) transmits power generated from the power generating unit. A second power transmitting unit(33) transmits power of the first the power transmitting unit to a media part(34) storing data. The media part is connected with the second power transmitting unit and moves in displacement larger than the first power transmitting unit. A plurality of hinge parts(30a,30b,30c,30d,30e) are formed between the power generating unit, the first power transmitting unit, the second power transmitting unit, and the media part. If the power generating unit moves the hinge part(30a), power is transmitted to the media part through the first power transmitting unit, the second power transmitting unit, and other hinge parts(30c,30e), so that the displacement of the media part is largely increased in comparison with the displacement of the hinge part.
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