The Delkin CF 500X memory card is designed for reliable, everyday use in compact cameras, DSLRs, gaming systems, music players and other CF devices that require fast sustainable data transfer and storage. With capabilities to write data at speeds up to 40MB/s, the CF 500X series excels in DSLR still and RAW photography, as well as standard video. Unlike memory cards that are mass-built and boated in from overseas facilities, the Delkin CF 500X card is built with carefully chosen and controlled components to increase longevity, reliability and overall quality and is supported by our Limited Lifetime Warranty. All of our cards are proudly designed, engineered and built in San Diego, CA.