Unmatched Speed and Performance: Delkin Devices 2TB POWER 4.0 CFexpress Type B Memory Card offers burst read speeds up to 3650MB/s and burst write speeds up to 3240MB/s in addition to a sustained write speed of 1570MB/s (820MB/s for 512GB). Ideal for recording 4K, 6K, and 8K videos and continuous RAW files with your mirrorless or DSLR camera, while also ensuring a streamlined workflow with quick data offloading for immediate access and efficient post-production. Optimized for Professionals: Designed with professional photographers and videographers in mind, this digital camera memory card has undergone extensive testing to ensure full functionality in today’s high-end cinematic hosts and compatibility with a wide variety of mirrorless and DSLR cameras. Durable Design: Shockproof and waterproof construction guarantees the highest level of durability. Comes with a small protective storage case for convenience. World's Best Warranty: Our premium 48-Hour Replacement Guarantee means we’ll replace any non-working card within 48 hours (not including weekends), prior to receiving the non-working card. Simply notify us, and a new card will be on its way! Additionally, each product is covered by Delkin’s Lifetime Warranty. Versatile Storage Options: Available in 512GB, 1TB, and 2TB capacities, providing ample space for all your high-resolution video and photo needs.