Blazing-Fast Speeds That Deliver Raw 4K Video When you're shooting where the action is, the CFexpress Card Type B unleashes the RAW performance of your gear. With read speeds up to 1500MB/s and write speeds up to 1200MB/s, you'll get low latency during high-speed recording and an enhanced workflow efficiency that's far beyond anything existing SanDisk cards deliver. This card enables smooth, RAW 4K video capture with sustainable performance. Backward-compatible with select XQD cameras that adopt firmware enabling CFexpress the card includes both RescuePRO Deluxe Recovery Software and a limited lifetime warranty for added peace of mind. Speeds that surpass other cards High-speed, consistent recording, and enhanced workflow efficiency far beyond existing SanDisk cards are the result of read speeds of up to 1700MB/s and 1200MB/s write speeds