l Expend Flash is an easy way to free up memory. Keep your content safe by connecting a hard drive to your phone, backing up photos and videos, and connecting to your connection 3. Use the high-speed USB 3.1 Gen 1 connector for fast transfer to your computer. You can also protect and save your files to keep their privacy 4. In addition, the cover protects the "flip", it is recommended to place it at the side of the USB Type-A port during use.