Overview Ideal storage for Android smartphones & tablets Up to 128GB to store even more hours of Full HD video (1GB=1, 000, 000, 000 bytes. Actual user storage less. Full HD (1920x 1080) video support may vary based upon host device, file attributes, & other factors. See official San Disk website.) Up to 140MB/s transfer speeds to move up to 1000 photos per minute (Up to 140MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speed. Based on internal testing; performance may be lower depending on host device, interface, usage conditions, & other factors. 1MB=1, 000, 000 bytes. Based on internal testing on images with an average file size of 3.55MB (up to 3.7GB total) with USB (Universal Serial Bus) 3.0 reader. Your results will vary based on host device, file attributes, & other factors.) Load apps faster with A1-rated performance (A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results