Review on 🔌 AuviPal 2-in-1 Powered Micro USB to USB OTG Adapter 90 Degree Right Angled - 2 Pack: Compatible with FireStick, S/NES Classic Mini, Sega Genesis and More by Jay Blo

Supplies power to an external on-the-go USB device to prevent your phone from draining its battery while the phone is accessing data on the OTG device. It's kind of a single port hub. It also cannot charge your phone due to the way USB 2 works. It can only reduce the power consumption of the phone. This only makes sense for power-hungry peripherals, i.e. cameras, motors, etc. An external power supply is required. The phone's power cords are not connected. An external power supply is not included with these connections.