Designed to deliver speeds necessary for working with smooth, raw 4K video captures, the 256GB Extreme PRO CFexpress Card Type B from SanDisk provides read speeds of up to 1700 MB/s and write speeds of up to 1200 MB/s, which enables low latency during high-speed recording and an enhanced workflow efficiency. This card is also backward compatible with select XQD cameras that adopt firmware to enable CFexpress. In the event of accidental file deletion, SanDisk's RescuePRO Deluxe data recover software is available as a free download. Please check with the manufacturer of your particular camera to ensure CFexpress compatibility. Speeds That Surpass Other Cards High-speed, consistent recording and an enhanced workflow efficiency beyond existing SanDisk cards are the result of read speeds of up to 1700 MB/s and write speeds of up to 1200 MB/s. Smooth 4K Video Performance The CFexpress form factor captures raw 4K video with sustainable, low latency performance in your video recording. XQD Compatibility The card is backward compatible with select XQD cameras that adopt firmware enabling CFexpress. The CFexpress Card Type B bridges existing devices with the future of technology. File Recovery with RescuePRO Deluxe Software The card comes with a RescuePRO Deluxe data recovery software download offer. This software makes it easy to recover files that have been accidentally deleted.