| 摘要 |
An SD card is enabled to be selectively placed in a first accommodating position of a smaller insertion depth and a second accommodating position of a greater insertion depth, and there is also provided a shifting mechanism for shifting the SD card in a discharging direction. This makes it possible, for instance, to insert a longer SD card deep inward and stow it in the second accommodating position when the unit is to be carried by the user, and to bring the SD card more outward with the shifting mechanism and to place it in the first accommodating position when the antenna circuit or the like is to be used, resulting in enhanced convenience for use. If the shifting mechanism is provided with sliding members, a heart-shaped cam groove, engaging pins, energizing members and the like, the longer SD card can be easily and smoothly shifted from one accommodating position to the other.
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