Features: After Test, The USB KEYBOARD AND THE USB KEY ARE OK, AND THE MOBILE HARD DISK HAS AN EXTERNAL USB POWER.IT CAN ALSO BE USED FOR MOBILE PHONES, TABLETS, MIDI, UMPCS AND E-BOOKS with Micro USB OTG for Otg.it is not supported to load OTG Mobile Phones Gold Tablets. (The Power Supply Only Provids Power to External Devices) This Type of Adapter Cable Can Be Used With The OTG Function Tablet. The USB Mobile Disk Requires An External Power Supply (this Adapter Can Be Solved with the Micro USB.Connect Hard Disk, U.Description Disk: Usually, The OTG Cable Can Not Connect Your Settings to The Mobile Hard Disk. The Micro USB Power Port Of This Adapter Resolves This Problem by Connecting The Microphone After The USB Power Interface, You Can Connect Your Mobile Phone Gold Mobile Hard Disk Tablet.Specifications: Size: 3 * 3 * 1cmcolor: Black Packaging Included: 1 x Card Reader < Q: Can I change the information of my order? As the reception address or item purchased R: order information can not be changed after spent. Please annually Ler your order and pass a new one if the Command Information Is Incorrect. OTHERWISE YOUR PACKAGE WILL BE SHIPPED INITIAL INFORMATION. Q: Why is Not My Order Shipped from China? R: If There is no further information Follow-up after 10 Days. This is Most Likely Due to a Domestic Shippin G Problem.for More Support, Please Contact Our Customer