SanDisk Extreme III CompactFlash is designed exclusively for the high-end, professional photographers who work under extreme conditions and expect the very best in products and support services.

Advanced Features: ?¦1 A minimum of 20MB/sec sequential write and read speed, which allows for faster capturing of large image files to the card, faster viewing of images and faster data transfer rates. *Based on SanDisk internal testing. 1 megabyte = 1 million bytes." ?¦1 Features ESP Technology (Enhanced Super-Parallel Processing Technology), which provides best-in-class performance ?¦1 SanDisk Extreme III CompactFlash cards are tested in extreme temperature ranges from -13 to +185 degrees Fahrenheit so that they can be used to shoot photos in any weather condition ?¦1 SanDisk Extreme III CompactFlash cards are shock and vibration tested with industrial-grade RTV included, which is designed for rugged use ?¦1 Backed by a lifetime limited warranty, if there's ever a problem, we'll replace it! ?¦1 In addition, these cards are packaged with a mini-CD for data recovery software, RescuePRO, to recover photos that are accidentally deleted. A dedicated technical support line is available for our direct customers of SanDisk Extreme III products, and the support from this hotline will receive priority service. Lastly, these cards also include a travel case to help photographers keep their memory cards organized.