This sit-stand monitor arm transforms your desk or tabletop into an ergonomic workstation. The monitor arm features a keyboard tray and easy height adjustment that lets you alternate between sitting and standing, without interrupting your workflow. Move your workstation up or down, left or right, to meet your needs. Adjust the height with one smooth motion Adjust your position, with one smooth motion. Simply lift the work surface up to 17.7 (450 mm), to elevate both your monitor and keyboard. You can adjust the tension to your own preference. The monitor mount has a separate height adjustment of up to 4.9 (124 mm) along the column. Optimum adjustability This sit-stand monitor arm supports one monitor up to 27 (or 34 ultrawide). The swing arm swivels +/-90° and tilts +35°/ -5° for ideal viewing. The VESA mount also rotates up to 360° for portrait or landscape orientation. Ample working space The monitor arm features a large keyboard tray (17.68 x 8.15/ 449 x 207 mm) with ample working space. A slide-out tray (8.5 x 8.4 / 217 x 213 mm) holds your mouse, on the left or right. To make the most of your workspace, you can tuck the monitor arm away when it''s not in use, to free up space. The keyboard tray also folds up to 90°. Flexible installation The compact sit-stand monitor arm features grommet or desk-clamp installation and fits easily into your workspace, including space-limited corners. This sit stand converter is backed for 2-years, including free lifetime 24/5 multi-lingual technical assistance.