Xtreme USB duplicators copy USB flash drives and external hard drives. Best USB flash drive compatibility on the market with Compact designed. ASYNCHRONOUS copy to save your time, the more targets the more time is saved. Intelligent copy mode to copy System and Files only, no need to copy the whole media and allowing you to do more in less time! The standard copy support all kinds of file systems, file size and card/drive capacity. DoD compliant erase function permanently deletes sensitive data. Standalone. No software needed.