Tera Grand USB OTG Adapter Micro USB OTG to USB A Female Adapter, Black (OTG-TE181-BK) This USB OTG adapter allows you to transfer files from USB flash driver and connect USB Mouse, Keyboard, or Joystick to your OTG compatible devices Easily back up essential files stored on your phone; Stream movies and music from your external hard drive on your phone Supported OS: Android 4.0 and above High Speed USB 2.0 Adapter, up to 480 Mbps transfer rate The OTG feature of your smartphones or tablets must be available, so this OTG adapter will work