The SanDisk Ultra microSD UHS-I card gives you the freedom to shoot, save, and share more than ever before. With capacities up to 1TB, the SanDisk Ultra microSD has room for even more hours of Full HD video and delivers blazing-fast transfer speeds to help you move that content in a hurry. Ideal for Android smartphones and tablets, the card loads apps faster with A1-rated performance. (1TB=1,000,000,000,000 bytes. Actual user storage less. Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors. See official SanDisk website. A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type, and other factors.)