This product is only suitable for smartphones and tablets with OTG function. If you are not sure whether your mobile phone or tablet has OTG function, please feel free to contact our customer service.
Can connect the Mouse or keyboard or USB flash disk or Card reader(can't connect Mobile hard drive).
Add PC-like functions to your mobile phones and tablets.
The micro usb charging port is to provide power to external devices when you connect to devices that consume too much power. To maintain the battery performance of mobile phones and tablets.