USB OTG lets you connect flash drives, keyboards, controllers, and more to your smartphone. Here's what you need to know!

How to tell if your Android phone or tablet supports USB On-The-Go Can you plug external devices into your smartphone? A simple app answers the question, potentially saving you both time and money.

On Android, you'll likely need to change your USB settings to Transfer files or Transfer photos (PTP). To do this, drag down your notifications from the top of the screen when connected.