Go with these 3' x 4' flash drives. Each backup and transports files easily and is USB 2.0/1.1 compatible. No external power is needed and each includes free setup a hot plug and play, powered by a USB port. They are PC and Mac compatible and feature shake and electromagnetic protection as well as a Tier I memory card and lifetime warranty. Due to memory chip market fluctuations please contact factory when placing order. Customize yours today.