The EZ Dupe's target SD/Micro SD duplication system conveniently copies the most popular digital media formats (secure digital) without a computer. Only carefully selected and tested materials are employed in EZ Dupe's professional line up of SD series systems. Support Synchronous and Asynchronous copy modes. With improved SOTA technology, SD duplicator can do Asynchronous copy even if the source data size is bigger than duplicator system memory. Real time copy and compare technology (copy one section and compare, then copy another section and compare again) to reach higher efficiency of copy compare process.