The invention is a monitor arm assembly including a rotation limiter that includes movable tabs to set the rotation limits of the arms with respect to each other or other assemblies. The rotation limiter may include exterior ring activators and outer visual references for the set limitations. The monitor arm assembly also includes a plurality of slide tracks to allow the monitor attached to the arm to take a plurality of lateral positions. The assembly may further include a connector to join adjacent slide tracks. The monitor arm assembly may include a double slider arrangement where a first track slides within a second track. A plate for connection to a monitor arm or monitor bracket may slide within perimeter channels of the first track.