The SanDisk Extreme III Safe Digital High Capability (SDHC) Card is developed particularly for high-end, expert photographers who work under severe conditions and anticipate the absolute best in items and assistance services. This 8 Gigabyte SDHC Card has a minimum of 20MB/second consecutive compose and check out speed (based upon SanDisk internal screening), which enables faster recording of big image files to the card, faster watching of images and faster information transfer rates.