The SanDisk Ultra Plus Class 10 microSD 64 GB Memory Card adds extra storage to your phone, tablet or laptop, while keeping file transfers super quick.Up to 200 MB/s read speeds - transfers up to 10 GB of files in just about a minuteDurable design - protects files from water, drops, shocks, magnets, X-rays and extreme temperatures64 GB storage - stores roughly 21,000 photos or 20 hours of videoSanDisk Memory Zone app - makes it easy to back up files and free up space on your device