SanDisk Extreme III memory cards feature innovative ESP Technology for the fastest speeds and highest performance. ESP stands for Enhanced Super-Parallel Processing which means you are getting the fastest read & write speeds available an amazing 20MB per second sequential read and write speed. Find yourself shooting and storing pictures in harsh environments, extreme temperatures or at high altitudes.
* Designed to meet the critical speed and performance needs of serious professional photographers lets you quickly capture, view, upload and transfer large image files Ideal for demanding photo shoots under severe weather conditions heat, cold, wind, rain, snow, etc.
* Built to perform in the most extreme environments and temperatures.
* Up to 20MB per second sequential read and write.
* Durable, reliable and thoroughly tested temperature tested, shock and vibration tested.