USB On-The-Go, often abbreviated USB OTG, is a specification that allows USB devices such as digital audio players or mobile phones to act as a host allowing a USB Flash Drive, mouse, or keyboard to be attached.
(compatible with smartphones and tablets that supports USB Host Mode/OTG feature).
Connect this adapter to browse files stored on a USB memory device – then transfer photos, videos, documents and other data between your compatible phone and the external memory. Easily back up essential files stored on your phone.
This Micro USB Host OTG cable works exactly the same as the super expensive USB Adapters from Samsung, Nokia or Motorola
With this Micro USB Host OTG cable, you can access most USB Flash Drives, Mouse, Keyboard and etc
(note: some external devices may not be compatible)
It also works with external hard disk, BUT you need external power source for the hard disk.