With the Logi Link docking station means that you can connect 6.4 cm (2.5 ") & 8.9 cm (3.5") SATA hard drives to your computer without opening the PC or to use an external hard drive. You simply connect the included USB (Universal Serial Bus) 2.0 cable to the computer. The power & data flow will be displayed by LED lights & by pressing the eject button the hard drive will be disconnected & can then be removed. The QP0005 has an integrated multi-card reader as well as a 2-ports USB (Universal Serial Bus) hub.