An OTG or On The Go adapter (sometimes called an OTG cable, or OTG connector) allows you to connect a full sized USB flash drive or USB A cable to your phone or tablet through the Micro USB or USB-C charging port.
How do I enable OTG on my Android?
Usually, when you try to connect an OTG, you get an alert “Enable OTG”. This is when you need to turn the OTG option ON. To do this, navigate through Settings > Connected devices > OTG. Here, click on the On/Off toggle to activate it.
How do I know if my USB cable is OTG?
An OTG cable has a micro-A plug on one end, and a micro-B plug on the other end (it cannot have two plugs of the same type). OTG adds a fifth pin to the standard USB connector, called the ID-pin; the micro-A plug has the ID pin grounded, while the ID in the micro-B plug is floating.