Patent ID: 7985082

Claim:
An external universal serial bus (USB) card reader, comprising: a cover; a circuit board movably received in the cover; a USB connector mounted to a front end of the circuit board; and a connector mounted to a back end of the circuit board and electrically connected to the USB connector via the circuit board, wherein a through cutout is defined in the cover to allow the USB connector to pass through, an inserting slot is defined in the cover to allow a memory card to pass through to connect to the connector, wherein 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 from the cover or retracting back into the cover through the through cutout, the cover comprises a first cover and a second cover mounted to the first cover to enclose the circuit board, the USB connector, and the connector, wherein the first cover comprises a bottom wall, a front wall, a back wall, and two sidewalls, two sliding slots are defined in inner surfaces of the two sidewalls of the first cover, respectively, extending from the front wall to the back wall, to allow the circuit board to slide in the cover.