RDX QuikStor 80, 120, 160, 320, 500 or 640GB of capacity on one cartridge Transfer rate of 162GB/hr Shock proof design, ruggedized cartridge Each cartridge is a rugged miniature hard disk - your computer will recognise it and provide instant access and easy drag and drop control. Or simply run the backup software provided for a total backup of your hard drive. When a cartridge gets full, just insert another - simple! With capacities of 80, 120, 160, 320, 500 and 640GB of data on a single cartridge you have enough capacity to back up your entire computer, ensuring your data is fully protected yet instantly available. Recording is fast - so is backup restoration. There is none of the rewind delay of tape systems. Access is near-instant, allowing you to work directly with data on the cartridge, just as you would with any other hard drive. Portable The cartridges are small and durable, so you can slip them in your pocket to take away. Store them offsite for archiving - or use them to transfer data to another computer.