High-performance highest quality memory card for the most demanding video recording uses of professional filmmakers and continuous burst mode shooting by advanced photographers Ultra speed: up to 3000MB/s write 3650MB/s read and 1500 minimum sustained real-world speeds for the most advanced uses cases of professional content creators including fast burst RAW image sequences and high bitrate video recording up to 8K+ Supportive: fully compatible with a wide variety of DSLR and mirrorless cameras; Cinema and high-end video cameras Compliant: fully meets CFexpress Type B 1.0 2.0 and 4.0 specifications Tough: impact bend shock ESD UV ray and x-ray resistant; 3 Year OWC Limited Warranty.