Mount-It! MI-7921 Sit-Stand Desk Mount Workstation, Height Adjustable Standing Desk, Ergonomic, Monitor, Laptop, and Keyboard Mount, 22, 23, 24, 27 Inch Monitors, Gas Spring Arm, C Clamp Base, Black SIT STAND: Move from sitting to standing in mere seconds with our easy-to-use gas spring arm system. Create ergonomic settings that are healthier and more comfortable FULL MOTION MOUNT: Height adjustable over 11.5" for the LCD monitor and keyboard gas spring arms. The height of each arm position is also adjustable on the pole. Tilt your monitor up 90 degrees and down 90 degrees with a combined 360 degree landscape to portrait rotation. 180 degree swivel allows both the monitor arm and the keyboard tray to be turned left or right DIMENSIONS AND SPECIFICATIONS: 26 inch wide tray is large enough for a keyboard and mouse DESIGN FEATURE: The base comes with both c-clamp and grommet options. Use the type of connection that suits your desk layout. C-clamp installation is extremely easy and the sturdiest mount on the market. Heavy-duty construction and materials keep this desktop stable and durable COMPATIBILITY: Supports 18, 19, 20, 22, 23, 24, 25, 27 inch monitors. Universal VESA compatibility of 75x75mm and 100x100mm. Heavy-duty load capacity of 20 lbs which covers most monitors and laptops on the market