Ergotron Desk Mount for Monitor, Display, TV - Matte Black - Height Adjustable - 2 Display(s) Supported - 101.6 cm (40") Screen Support - 19.96 kg Load Capacity - 100 x 100, 75 x 75 - Yes Find your best view, save desk space and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. To add a third or fourth display, order the LX Arm, Extension and Collar Kit accessory. To support a laptop, order the LX Notebook Tray.