| 摘要 |
A function expansion device has a housing containing an electronic component and a locking mechanism having a lock-releasing member attached to the housing and movable between a locking position in which the member contacts the housing and a lock-releasing position to which the member moves in response to a lock-releasing operation. The locking mechanism locks an electronic device so that it cannot be removed when the lock-releasing member is in the locking position and unlocks the electronic device in response to an operation of moving the lock-releasing member from the locking position to the lock-releasing position. The housing and the lock-releasing member have respective holes which communicate with each other when the lock-releasing member is in the locking position.
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