Here is another monitor mount that helps you get more active at work. The StarTech.com Sit-Stand Monitor Arm has a keyboard tray. It is adjustable and can hold displays up to 27 inches (up to 17.6lbs). The keyboard tray is foldable, so you can easily get it out of your way.
The display mount offers vertical tilt and 360-degree rotation. This standing workstation has a height adjustment range of up to 17.2 inches. The VESA mount also allows 4.8-inch height adjustment.