The Ergotron MX Desk Mount LCD Arm, model 45-214-026, is a height-adjustable monitor arm designed for use in an accessible computer work station. This unit supports liquid crystal display (LCD) monitors weighing up to 30 pounds, and allows the user to position the display to relieve eye, neck, and back strain. The unit has height adjustment, extension/retraction, tilt, and portrait-to-landscape capabilities. The user can push the display out of the way when not in use. Cables can be concealed and routed under the arm. DIMENSIONS: Arm extends up to 16.7 inches. The height adjusts up to 5 inches.