Howtogeek posted How to Use a USB Flash Drive with Your Android Phone or Tablet
A quote from the article:
Ever want to watch a video on your phone or tablet without wasting its storage space? Or maybe you just need to view a file your friend gave you. Most modern Android devices support standard USB drives, so you can plug in a flash drive just like you would on a computer.How to Use a USB Flash Drive with Your Android Phone or Tablet @ Howtogeek