| 摘要 |
The present invention discloses a computer expansion device with a universal serial bus (USB) interface, comprising: a housing having an installation space; a circuit board, disposed in the housing and having a USB port and a power supply terminal; the USB port electrically coupled to a first USB interface signal IC by a circuit, and such IC being electrically coupled to three first connecting ends by circuits, and electrically coupled to a second USB interface signal IC by another circuit, and such IC being electrically coupled to four second connecting ends; wherein the three first connecting ends and a second connecting end selectively coupled to a peripheral device with a USB interface conversion function by an electric connection such that the USB interface signals are transmitted, and the rest of the three second connecting ends are respectively coupled to a USB interface socket.
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