3 Screen Display - Designed to hold two 13 to 27 monitors weighing up to 22 lbs each with VESA 75x75mm and 100x100mm mounting holes. The ventilated tray holds laptops up to 17, creating a triple screen display for maximum efficiency! The stand secures to your desk with a heavy-duty C-clamp (up to 3.25 thick) or with optional grommet mount (up to 3 thick). Full Articulation - Enjoy optimal viewing angles with +90° to -90° tilt, 180° swivel, 360° rotation, and height adjustment along the extra tall center pole. The monitors can be placed in portrait or landscape orientation.