OWC Atlas Pro 256GB CFexpress Type-B 4.0 Memory Card, w/CFexpress Type-B Reader

Pro speed: up to 3000MB/s write and up to 3650MB/s read real-world speeds for the most advanced uses cases including fast burst RAW image sequences and high bitrate video recording up to 6K Supportive: fully compatible with a wide variety of DSLR and mirrorless cameras Compliant: Fully compliant up to CFexpress Type B 4.0 specification and meets Type B 1.0 and 2.0 specifications Effective: with XQD format cameras that have been updated to support CFexpress Type B Tough: impact, bend, shock, ESD, UV ray, and x-ray resistant