Every Galaxy S7 comes with an OTG USB Connector. It allows you to connect virtually any USB device to your Galaxy S7!
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1)Connect USB card reader, so you can upload pics from DSLR straight to instagram
2)Connect Mouse and Keyboard directly to phone, so you can type and be more productive.
3)Charge any device connected with a standard USB cable. You can charge headphones, drones, other phones even!
4)You can connect USB dongles and even external hard drives to your phone. This is great if you don’t want to fill up the external storage of your phone. They Galaxy S7 has micro sd support, but this is also good for those phones without this capability.
5)Gaming Controller – You can use the OTG connector with a USB game controller, and it should work out of the box. The PS4 controller does not work using this method at the moment, I just used it…