The Dubbler Dock is a Standalone 1:1 Hard Drive Duplicator. Backup or copy your entire hard disk drive contents to suit your needs with the touch of a button and without the need to be connected to any computer. Duplication mode uses Sector by Sector copying to minimize data loss and/or corruption. This device also functions as a SATA Dock. When in regular mode, each hard drive will show as its own individual drive when connected to a computer. Our Dubbler Dock is manufactured from extruded Aviation grade A aluminum and has a 100% tool and screw free design. No more struggling with screws while installing/removing hard drives from external enclosures. Easily dock or remove your 2.5/3.5-Inch hard disk drives, truly incorporating Hot Swap and Plug & Play functionality.