USB device

The invention discloses a USB device comprising a front shell which is provided with a first end part and a second end part which are opposite to each other and is provided with an accommodating cavity, wherein the accommodating cavity is communicated with the outer side through a first opening formed on the end surface of the first end part and is also communicated with the outer side through a second opening formed on the side surface of the second end part; a PCB which is inserted into the accommodating cavity from the first opening, wherein one part of the surface of the PCB is exposed through the second opening; a protective shell which sleeves the second end part, wherein the protective shell, the exposed part of the PCB and the second end part form a USB connector structure; and a rear shell which covers the first opening and is fixedly connected with the front shell, so that the integrity of the shell main body of the USB device can be guaranteed. 本发明公开了一种USB设备，包括：前壳，设置有相对的第一端部和第二端部，所述前壳设置有容置空腔，所述容置空腔