The Platinum Series Dual Monitor Arms are fully independent with innovative gas spring technology that allows for effortless monitor adjustment. The intuitive cord management system helps minimize clutter. Two 3.0 USB ports located at the base of the product make it easy to connect to your favorite devices. Easy to mount can be mounted via clamp on desks between .8 and 4.7 thick or grommet hole between .3 and 2.9. Each arm holds a monitor up to 20 lbs. Meets VESA mounting standards.