Accutower multi-port USB duplicators by US Digital Media are the cornerstone of reliable USB duplication. Trust Accutower by USDigitalMedia for quality USB duplication equipment. Download a copy of the user manual for your Accutower Flash USB duplicator! Save a copy to your computer or print one out for your reference. When you first receive your Accutower USB Duplicator, please refer our quick start guides to get you up and running fast. For more in depth instruction please look at our manuals and product brochures. If you still have questions please contact our knowledgeable support team who can help you with all your technical support needs at Support@usdigitalmedia.com. All Accutowers are backed with our lifetime Technical Support.