Rewritable and erasable external storage medium. High-speed flash drive with USB-C and USB-A 3.1 Gen 1 connector. Create free storage on your smartphone or tablet. Capture videos and photos directly on the Dual Drive Go. Automatically back up new photos and videos with the SanDisk Memory Zone app. Quickly back up videos and photos on your computer thanks to the USB 3.1 Gen 1 connector. Backward compatible with USB 2.0 ports. Protect files with a custom 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 ports. USB-A: Windows 10/8/7, Mac OS X v10.9+.