Just picked up a few of these for my Canon 7D. They are very fast, extremely reliable and best of all cheap. Great for any DSLR that takes Compact Flash.
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-from -13º F to 185º F , -25º C to 85º C
Min 20MB/second sequential read and write
Durable, reliable and thoroughly tested-temperature tested (heat and cold)
shock and vibration tested (industrial-grade RTV included for CompactFlash)
Data recovery software-ensures your photos will always be there (even if you delete them accidentally)
Dedicated, priority technical support hotline for direct customers of SanDisk Extreme products
Included travel case keeps your memory cards organized