Capacity: 4GB Extreme IV CF CARD Designed to meet the critical speed and performance needs of serious professional photographers. Significantly improved workflow efficiency for capturing, viewing, upload and transferring 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- -13?F to 185?F -25?C to 85?C sequential read and write (leveraging the new Extreme FireWire Reader) Durable, reliable and thoroughly tested-temperature tested (heat and cold); shock and vibration tested Data recovery software-ensures your photos will always be there (even if you them accidentally) Dedicated, priority technical support hotline for direct customers of SanDisk Extreme products Included travel case keeps your memory cards organized. Delivering and quality gurantee: All the goods will be delivered by ems, because this is a very safe express dilivery.We will provide one year free maintenance for all the cards we sell. mini case