The Vantec NexstarR Hard Drive Dock is a complete and easy way to add or swap hard drives to your computer. It gives you the flexibility of connecting any SATA I/II hard drive to your computer via USB 2.0 connection without opening up your computer case or installing into an enclosure. Simply just insert any 2.5" or 3.5" SATA I/II hard drive into the NexStar Hard Drive Dock and you are read to transfer, copy, or backup files. Quick and easy, the Vantec Nexstar Hard Drive Dock is the perfect solution to access your hard drive in seconds