SanDisk 64GB Class10 UHS-1 Ultra Android 80MB/s Shoot and save more high-quality photos and Full HD video on your Android™ smartphone or tablet with SanDisk Ultra microSD UHS-I Cards. With storage capacities up to 64GB, they're the ideal complement for Android smartphones and tablets. And the SanDisk Memory Zone app, available on the Google Play™ store, makes it easy to view, access, and back up all of your files from your phone’s memory in one convenient place. To help your smartphone run at its peak performance, this app can be set to automatically off-load files from your smartphone’s internal memory to your memory card.