| 摘要 |
<p>A data card includes a casing, a circuit board in the casing, a plug located on the casing and a cap part. The plug is electrically connected with the circuit board. The cap part is capable of covering the plug. A card slot is defined in the casing at a joint of the casing and the plug. The cap part covers a notch of the card slot when the plug is inserted into the cap part. The cap cover the notch of the card slot while covering the plug, thereby providing a protection of the SIM card at the same time. The invention mainly use in wireless data signal receiving or transmitting device.</p> |
