With the Logi Link docking station you can connect up to 2 26.4 cm (2.5 ") & 8.9 cm (3.5 ") SATA hard disks to your computer without opening the PC or an external hard disk casing. It is easy to connect with the included USB (Universal Serial Bus) 2.0 cable to the computer. By means of LED power supply & data flow can be displayed & by pressing the eject button the connection & the hard disk can be removed. For connection of two hard disks the Clone-Function can be used to clone the hard drives without cloning the PC