Explained: What is USB OTG and how to use it on Android devices

USB On-the-go or USB OTG is a standard protocol that allows devices to read data from a USB device without the need of connecting them to a PC. The device uses the OTG cable to turn itself into a USB host. There are multiple ways in which an OTG connection can be useful. These include -- connecting a USB flash drive or a video game controller directly to your phone.

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