Description:Brand: BaseusName: Micro OTG Adapter Multi-function HDMIColor: Gold Rose goldSize: 20*15*6mmMaterial・ ABS+MetalInput: 2.1AApplicable: Sopport OTG protraol / micro USB iterfaceFunctions: Data transfer with external devicesNote: MICRO OTG ADAPTER Multi - function HDMI1.OTG function does not support the NTFS file system、 support FAT32 file system、 if wrong、 please send mobile phone memory card or u disk file backup format into FAT32.2. If can't recognize U disk、 restart the phone to refresh the firmware. To Switch the USB debugging mode test. 3、 power-hungry equipment (mobile hard disk)、 normal operation wit an external power source.