The Medium Reach Lateral LCD Arm is identical to the 9130 except that it uses a shorter 'outer' arm, making the horizontal range only 14" instead of 16.5".
Images (Click on any thumbnail to view larger image)
Medium Reach Lateral LCD Arm on Pole
Medium Reach Lateral LCD Arm on Pole - side view with wall mount
Medium Reach Lateral LCD Arm on Pole - extension view with desk mount