Rewritable and erasable removable storage medium. High-speed flash drive with USB-C and USB-A 3.1 Gen 1 connection. Create free storage on your smartphone or tablet. Record videos and photos directly on the Dual Drive Go. Automatically back up new photos and videos with the SanDisk Memory Zone app (available for free download). Quickly back up videos and photos to your computer thanks to the USB 3.1 Gen 1 connector. Backward compatible with USB 2.0 ports. Protect files with a personal password. Rotatable design with a loop for attaching to a keychain and protecting the connectors. System requirements: USB-C: Smartphones, tablets, and other devices with USB-C connection. USB-A: Windows 10/8/7, Mac OS X v10.9+.