More Storage space for videos, photos, music, movies and other files . Blazing transfer speeds mean that your content moves fast letting you move up to 1000 photos in a minute. Rated A1, the SanDisk Ultra micro SD card is optimized for apps, delivering faster app launch and performance that provides a better smartphone experience. Class 10 speed rating allows you to shoot Full HD video and high quality photos. SanDisk cards are compatible with Android smartphones and tablets.