The Ergo D-Pro Notebook Stand has multiple tilt positions to hold your notebook in a vertical position to allow the notebook LCD to be used as the display. The height adjustment feature ensures you position the LCD screen in the most ergonomic position for your eye-line. Additional features include a compartment that can store a mobile docking station or USB hub and a document holder which is positioned directly in front of the notebook user. A rotating base is also included to allow you to share your notebook screen with someone sitting next to you. Compatible with all PC and Mac notebooks up to 17". Must be used in conjunction with a separate keyboard.