Ergotron LX Dual Stacking Arm, Extension and Collar Kit, Matte Black.

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.

• Boost productivity: Quickly view multiple files and data for more efficient working
• Neat workspace: Cable management routes cables under the arm, out of the way
• Quality design: Built for thousands of movements by passing 10,000-cycle test