Features: The Sata Docking Station supports the direct insertion of desktop two 2.5"/3.5" Sata hard drives, makes swapping hard drives easier than ever before. You can enjoy the lightening speed of USB3.0 to quickly transfer files up to 5Gbps Usb2.0480Mb Connect any 2.5"/3.5" Serial-ata (Sata) or SATAII hard drive to your computer through an available USB3.0 port on your desktop or laptop. Hard Drive Duplicator Function, let you duplicate/clone- an existing hard drive without the use of a host computer system, or can be connected to a computer system for use as an external- hard drive dock. With On/Off power-switch Hot-swappable, plug and play, no drivers needed. LED light indicates power- and activity status. Specifications: Supported interface: MicroB To Sata Applicable hard drive: 2.5-inch/3.5-inch universal hard drive Transmission speed: USB3.0 5Gbps Supported capacity: 12TB (Max-) Support system: Windows-/MacOS-/Linux- Plug-Type: US/ EU Size: appox118x115x89mm/4.65x4.53x3.5in Weight:550g Material:ABS How To use Hard Drive Duplicator Function: Plug- in Both hard drives and identify Source Disk and Target Disk: HDD A=Source Disk; HDD B=Target Disk Connect power-supply and switch-on power-.(make sure that the usb cable is disconnected) Press "Copy" button for about 10 seconds until the LED will start flashing and the cloning process will begin. Note: For the safety of your hard disk data, you'd better not to plug- or unplug- the hard disk when it is connected- to the power-source. The e-SATA interface is plug- and for play and supports hot swap. Please allow 0-1cm error due to the manual measurment and certain tolerances in the product, please understand. Package includes: 1PC Hard Drive Dock 1PC Power Supply 1PC USB3.0 Cable 1PC User Manual