ship from Japan Save time with card offload speeds up to 200MB/s powered by SanDisk QuickFlow Technology (read speeds up to 200MB/s, designed with proprietary technology and compatible with UHS-I to reach speeds above 104MB/s) A device is required.Based on internal testing: Performance may be lower depending on host device, interface, usage, and other factors.1MB = 1 million bytes.X = 150KB/s.SanDisk QuickFlow technology requires 64GB, (Only available for 128GB, 256GB, 512GB, 1TB capacities. 1GB = 1 million bytes. 1TB = 1 million bytes. Actual user storage is less.) Pair SanDisk Professional PRO-READER SD and microSD for maximum speed (sold separately) Shot speeds up to 90MB/s (Write speeds up to 90MB/s. Based on internal testing, performance may be lower depending on host device. 1MB = 1 million bytes. X = 150KB/s). Ideal for 4K UHD video and sequential burst mode shooting (Full HD (1920x1080) and 4K UHD (3840 x 2160) Video support may vary depending on host device, file attribute