The Vantec NexStar HDD Duplicator is a versatile storage device for duplicating hard drives as well as a high capacity USB 3.0 storage. The simple docking design offers quick access and removal of your hard drives for storage or data duplication. With its' built-in one-button cloning; you can copy sector-by-sector as a standalone device without even connecting to a computer. When connected to a computer, the device transforms into a SuperSpeed USB 3.0 storage device for up to 2 high capacity hard drives. Whether your need is storage or duplication, the Vantec NexStar HDD Duplicator is the perfect solution.