-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. -Min. 20MB/second: sequential read and write (Dependant on computer system speed) -Durable, reliable and thoroughly tested--temperature tested (heat and cold); shock and vibration tested (industrial-grade RTV included for CompactFlash) -Data recovery software: ensure your photos will always be there (even if you delete them accidentally)