Turns out the additional connectors are for using smart switch - allowing you to move your content from your old device to your new galaxy device. Use your existing devices USB data/charging cable and plug the full sized USB end into your new device to get your devices connected to each other.
Go to Settings : Cloud and accounts : Smart Switch
Agree to Terms and Conditions
Connect the two devices
Select content you want to transfer
Tab the icon at the bottom of the screen to start transferring