For professional film makers using cinema cameras with CFexpress technology Flawless 8K video capture with super-fast 1400MB/s minimum sustained write speeds (8K (7680x4320) video support may vary based upon host device, file attributes, usage conditions and other factors. See official SanDisk website. Up to 1700MB/s read Blazing-fast burst speeds of up to 1500MB/s write and 1700MB/s read (1400MB/s minimum sustained write speed. Based on internal testing; performance may be lower depending upon host device, usage conditions, and other factors. 1MB=1,000,000 bytes.) Durable design that withstands up to 1-meter drops and up to 50 newtons (11.2 pounds-force) (Based on internal testing.)