The advantage of having two monitor arms is that you can work with multiple screens simultaneously without having to switch between them. This improves work performance. In addition to the ergonomic benefits, the arm also has several practical features. The foot of the arm has an audio and a USB port, so you can always charge your phone, for example. The screens on the arm can rotate 360 degrees, and the gas spring allows for simple screen adjustment to any height. This arm supports screens up to 27 inches.