Flex Pro is a powerful commercial grade duplicator which can copy 23 pcs of SD or Micro SD cards simultaneously. It has high output capacity but only takes up to 1/10 of a regular duplicator space. Bundled with special user menu, the compact and light weight Flex Pro is ideal for workplaces with space limitation such as a small retail shop or office. Expandable design makes it possible to daisy chain ten Flex Pro units together. Up to 239 ports for duplication which is ten times the output capacity of one unit. Flexible to arrange daily job even with large quantity duplication on demand. Dual source copy and compare, a new duplication strategy, is implemented into Flex Pro SD/Micro SD Duplicator. One source is used for copy and the second source is for comparison with the copied media. By comparing to different source, it can find and eliminate the source device with inaccessible or damaged data content after being used for long time. 100% copy accuracy can be achieved. Standalone turnkey system; no computer required.