还有些外部设备，包括USB端口、蓝牙，某些型号上还有读卡器。
There are also some peripheral attachments available, including USB ports, a card reader on some models, and Bluetooth.
新键盘读卡器有多个型号用于定制配置。
The new keypad readers come in multiple models for custom configuration.
新键盘读卡器有多个型号用于定制配置。
The new keypad readers come in multiple models for custom configuration.
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