CFexpress memory cards offer extremely fast and reliable storage for demanding photography and video applications. They are particularly well-suited to high-resolution continuous shooting, 4K and 8K video recording, and situations where high write speeds and consistent performance are required.
CFexpress memory cards are by far the fastest memory cards on the market to date. They are theoretically capable of speeds of up to 4Gbps. There are three different types of CFexpress memory cards, with slightly different physical sizes. Type-A is the smallest and has a read speed of up to one gigabyte. Type-B is the most common of the three models and is capable of two gigabytes. Type-C is the size of a CompactFlash card and is capable of four gigabytes.
CFexpress memory cards are used by flagship DSLR cameras from Canon, Nikon, Sony and Panasonic, including the Canon EOS R5, Nikon Z6, yes Sony A7S III.