The Delkin CF 500X memory card is designed for reliable, everyday use in compact cameras, DSLRs, gaming systems, music players & other CF devices that require fast sustainable data transfer & storage. With capabilities to write data at speeds up to 40MB/s, the CF 500X series excels in DSLR still & RAW photography as well as standard video. Unlike memory cards that are mass-built to general specifications, the Delkin CF 500X card is built with carefully chosen & controlled components to increase longevity, reliability & overall quality & supported by lifetime manufacturer warranty.