100% brand new and high quality This product is only suitable for smartphones and tablets with OTG function. If you are not sure whether your phone or tablet has OTG function, please feel free to contact our customer service. Can be connected to mouse or keyboard or U disk or card reader (removable hard disk is not allowed). Add PC-like functions to your phones and tablets. The micro usb charging port is to supply power to external devices when connected to devices that consume too much power. Maintain the battery performance of mobile phones and tablets. Quality is guaranteed, please rest assured to buy Specifications: Material:ABS Size: Approx.15x11x3cm/5.90x4.33x2.32inch note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1xUSB Adapter