Depending on your phone’s USB port and the port on your USB drive, you may also need an adapter.
USB OTG support depends on the hardware present in your smartphone but if it does support OTG, you can use a thumb drive to transfer files from or to your computer. This USB specification allows devices like smartphones to act as a host to USB devices like flash drives, mice, and keyboards. Android has supported USB OTG (on-the-go) since its early days.
