| 摘要 |
An external multimedia expansion device suitable for being electrically connected to a portable computer is provided. An express card is inserted into the portable computer, and the external multimedia expansion device is suitable for being electrically connected to the portable computer through the express card. The external multimedia expansion device includes a first circuit board and a transmitting cable. The first circuit board is suitable for being electrically connected to at least one processing unit, and to the express card through the transmitting cable. The transmitting cable is suitable for transmitting at least one of a high-speed signal and a universal serial bus (USB) signal, so that the performance of the portable computer can be enhanced through operating the processing unit. Since the external multimedia expansion device is suitable for transmitting the high-speed signal, the portable computer can enhance performance of its hardware through an external expansion card.
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