This incredibly versatile product supports up to 26 monitors with a maximum individual weight of 22.1 lbs. Not only will this strong and sturdy mount have no trouble holding VESA certified 75x75 or 100x100 monitors, (fitting the above criteria), it is also extremely adjustable! Each monitor can be placed at a different height to accommodate different sized monitors The monitor has 360 rotation, meaning landscape, portrait, or anything in-between Tilt and Swivel and Rotation is provided in 5 places ensuring maximum adjustability: Swivel in the hinge: +/- 90 Tilt in the hinge: +90/-20 Tilt in the arm: +65/-30 Rotation about the pole and main arm: 360 Height adjustable, with a maximum height of 19.63 (from the desk to the center of the mounting device) Extendable with a max horizontal extension of 24.4 from the rear edge Benefits of Clamp Mounting: CClamp Bases are an excellent mounting option! They are screwed onto the edge of a desk for maximum space. (Clamp bases require a lip on the desk 8-50 mm thick and 85 mm deep) They are the sturdiest mount of the three kinds (stand, clamp and grommet) They take up the least amount of desk space (So much more room for activities!)