| 摘要 |
A control apparatus includes a port, an openable and closable door, and a holding mechanism. A connector of the USB device is insertable into and removable from the port so as to connect and disconnect the USB device to and from the control apparatus. The openable and closable door is disposed adjacent the port, and configured to open so as to expose the port and configured to close so as to shield the port. The holding mechanism is disposed at the openable and closable door and configured to hold a housing of the USB device when the openable and closable door is open.
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