Features 1、Made of high quality material for durability and stability. 2、Stable performance, easy to install and operate. 3、After testing, the USB keyboard and U disk are OK, and the mobile hard disk has external USB power. 4、It can also be used for MID, UMPC, and e-books with micro usb interface for OTG transmission. 5、This adapter cable has switch switching, switching OTG mode or power mode. Specification Features: Made of high quality material for durability and stability. Stable performance, easy to install and operate. After testing, the USB keyboard and U disk are OK, and the mobile hard disk has external USB power. It can also be used for MID, UMPC, and e-books with micro usb interface for OTG transmission. This adapter cable has switch switching, switching OTG mode or power mode. Specifications: Condition: Brand New Color: Black Material: ABS Package List: 1 * Charging Host Cable Note: Note: Only one of the OTG and power supply functions can be used. It cannot be used at the same time. (Currently all OTG wires can't charge mobile phones or tablets, just power external devices)