User Guide

then plug your USB mouse on the USB female port to check if your
phone/tablet support OTG or not.
3, If you have confirmed your phone/tablet supports OTG function, just
hook your USB flash driver or keyboard on the USB A female port. Your
flash driver's format should use Fat32 file system. If you used other file
system, like NTFS, your phone would not detect your flash driver, pleas
e format your flash drive with Fat32 file system on your PC in advance.
4, We do not recommend you hooking a portable driver on this OTG
cable, because USB portable driver usually needs large current, howev
er most phones probably could not offer the sufficient power for your
portable driver's requirements.