It allows users to back up and sync all of their digital content from anywhere. They also get access to their videos and photos via the DUO LINK 4 App, without the need for a Wi-Fi connection. The PNY Duo Link USB 3.0 OTG Flash Drive is compatible with a massive variety of iOS devices, so anyone with an iPhone 5 or above will be able to use it. It can also be utilized to charge the device if someone is short on battery. Overall, the PNY Duo Link for iPhone and iPad aims to provide a solution for power and storage issues customers may face when using their mobile devices.