4.Connect the USB cable to Your Notebook
Connect the "A" end of the USB cable to your laptop.
The attached monitor is set as your main display (showing the Windows task bar at the bottom of the screen), and your laptop screen is set as your extended display (showing your Windows desktop). You can change the display configurations settings; see Video Modes.
Video Modes
Kensington Docking Stations and
When extending your laptop's desktop to a second display, one of the displays must always be the "main" or "primary" display. The Windows taskbar typically appears on the main display.
The video output can easily be configured to meet your workspace needs. You may wish to adjust the settings based on the location of the monitor on your desk and on your personal preferences.