Description: It is used for external USB keyboard, USB disk and other mobile hard disk, and also can be used for mobile phone, tablet, MID, UMPC with micro USB OTG interface, and e-books for OTG transmission. Features: 1. Compact and small size, easy to carry, convenient and simple to use. 2. Plug and play, no need external power supply for ordinary equipment. 3. Equipped with auxiliary power supply interface for external hard disk connection. 4. Universal adapter, suitable for mobile phones, tablets, e-books, etc. 5. Exquisite appearance, with a long service life, not easy to damage. Specification: Item Type: Adapter Color: Black Usage: Micro USB to USB OTG Weight: Approx. 9g Package List: 2 x Adapters Note: 1. OTG mobile phone or tablet charging is not supported (the power supply function is only for external devices). 2. Suitable for mobile phones and tablets with OTG function. 3. External power supply is required for USB portable hard disk (Micro USB power supply interface for this adapter). 4. Note that the Micro USB port on the back is used for power supply to external devices, not for charging mobile phones/tablets or transferring data. 1、Compact and small size, easy to carry, convenient and simple to use. 2、Plug and play, no need external power supply for ordinary equipment. 3、Equipped with auxiliary power supply interface for external hard disk connection. 4、Universal adapter, suitable for mobile phones, tablets, e-books, etc. 5、Exquisite appearance, with a long service life, not easy to damage.