Not all devices support SDXC memory card formats. Check with your device manufacturer for more details. | *1GB=1,000,000,000 bytes. 1TB=1,000,000,000,000 bytes. Actual user storage less. | **Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Performance may be lower depending on host device, interface, usage conditions and other factors. 1MB = 1,000,000 bytes. | (1) (For 32GB-256GB): Up to 120MB/s read speed, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speed. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes. (For 16GB): Up to 80MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, usage conditions, and other factors. 1MB=1,000,000 bytes. | (2) Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors. Visit the SanDisk Video Knowledge Base for more information. | (3) Visit the official SanDisk website for details. | (4) Card only. See product packaging and see official SanDisk website for additional information and limitations. | (5) UHS Speed Class 1 (U1) designates a performance option designed to support real time video recording with UHS enabled host devices. See official SanDisk website for more details. | (6) Reader not included. | (7) (For 32GB-256GB): Read only. Based on 4.7GB transfer of photos (avg. file 6.7MB) with SD UHS-I card reader. Write speed slower. Results may vary based on host device, file attributes and other factors. | (8) [128GB-256GB] Up to 150 MB/s read speed. Write speed up to 70 MB/s. [64GB] Up to 150 MB/s read speed. Write speed up to 60 MB/s. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. [16GB-32GB] Up to 90 MB/s read speed. Write speed up to 40 MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. | (9) [64GB-1TB] Up to 170MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, require compatible devices capable of reaching such speeds. Write speed up to 90 MB/s. [32GB] Up to 95 MB/s read speed. Write speed up to 90 MB/s. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes. X = 150KB/sec. | (10) Full HD (1920x1080) and 4K UHD (3840 x 2160) video support may vary based upon host device, file attributes, and other factors. Visit the SanDisk Video Knowledge Base for more information. | (11) UHS Speed Class 3 (U3) designates a performance option designed to support 4K UHD video recording with enabled UHS host devices. UHS Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See official SanDisk website for additional information.