Specs Storage Capacity: 4 GB Designed to meet critical speed and performance professional demands Lets you quickly capture, view, upload & transfer large data files Ideal for demanding use under even severe weather conditions Built to perform in the most extreme environments and temperatures from -13?F to 185?F -25?C to 85?C Min 20MB/second sequential read & write per SanDisk testing Durable, reliable & thoroughly tested Temperature tested both heat & cold Shock & 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