Ergotron Desk Mount for Monitor, Curved Screen Display - Matte Black - 1 Display(s) Supported - 124.5 cm (49") Screen Support - 19.05 kg Load Capacity - 75 x 75, 100 x 100, 200 x 100, 200 x 200 Heavy Monitor Mount Choose a monitor arm that's as adaptable as you. With the HX Desk Monitor Arm, you can easily reposition large monitors weighing up to 42 lbs (19.1 kg) using patented Constant Force™ Technology. It enhances your workspace with a sleek design, and an optional dual or triple monitor bow kit ups your screen count and productivity. It's BIFMA level® 2 certified based on the arm's low environmental and social impact.