| 摘要 |
An external universal serial bus (USB) card reader includes a cover, a circuit board movably received in the cover, a USB connector, and a connector. The USB connector is mounted to a front end of the circuit board. The connector is mounted to a back end of the circuit board and electrically connected to the USB connector. A through cutout is defined in the cover to allow the USB connector pass through. An inserting slot is defined in the cover to allow a memory card pass through. The USB connector is operable to be forced by the memory card to drive the circuit board to move in the cover, resulting in the USB connector extending out of the cover or retracting back into the cover through the through cutout.
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