| 摘要 |
A ground electrode is disposed between a card-side connector and an upper panel, movably forward or backward in the card insertion direction, the ground electrode including protuberances projecting through the protuberance receiving holes of the upper panel. The ground electrode is energized to move forward in the card insertion direction by means of a torsion spring such that, when the PC card is inserted into a 16-bit card slot corresponding to a predetermined high driving voltage, the protuberances in the protuberance receiving holes are moved backward in the card insertion direction against the spring force of the torsion spring.
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