| 摘要 |
The present invention relates to a device for assisting an external interface of a mobile device, comprising: a first coupling part for attaching and detaching a connector for connecting a mobile device; and a second coupling part for attaching and detaching a USB connector. The first coupling part and the second coupling part can be formed on a separate main body part or a case. A USB interface device including a USB storage device is attached to or detached from the first coupling part and the second coupling part, and the USB storage device is recognized immediately using a USB On The Go (OTG) technique. The USB storage device to be used by being mounted on the connection jack of an external connector of a mobile device can be carried and used conveniently without worrying about loss or damage. |
