Ergotron Mounting Arm for Monitor, Notebook, LCD Display - Matte Black - Adjustable Height - 4 Display(s) Supported - 25 lb Load Capacity - 100 x 100, 75 x 75 VESA Standard 98-130-224

Upgrade a LX Monitor Arm to a stable multi-monitor solution for two, three or four monitors. This kit easily attaches to the pole of the desk mount base to hold additional monitors or a laptop computer for gaming, call centers, industrial spaces or finance applications. For triple or quadruple monitor set-ups, use with the LX Dual Stacking Arm, Tall Pole.