USB OTG (USB On The Go) is a standard that enables mobile devices to talk to one another. Traditionally mobile devices could only connect to a Mac/PC by USB, but USB OTG makes it possible for devices to connect directly to each other. And that’s not all USB OTG can do. By enabling your device to act as a USB host – that is, to be the boss of other devices that you connect to it – you can use additional hardware such as storage, keyboards or even musical instruments together with your device
USES OF THE OTG CABLE
By using USB OTG, it’s possible to couple your smartphone or tablet
with peripheral devices, such as a mouse or a keyboard, which you can then use TO control it. There are some restrictions – for example, gaming mice with a billion buttons might not be fully compatible – but for the most part, the basic operations are enabled. This means it’s easy to turn a tablet into a laptop by sticking an external keyboard into it, for example.
You can even connect to storage devices such as USB sticks or external hard drives with USB OTG. Using a file manager on your device, you can directly access data on an external storage device and play movies or music without having to store them on your device. Alternatively, you can use it as a non-cloud based backup storage option for your photos, music, and other files from your smartphone.
If you fancy making music on Android, USB OTG enables you to connect devices such as MIDI keyboards and controllers, audio inputs for instruments and vocals and various controllers that can turn your phone or tablet into a serious music making machine.