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Polished aluminum and black steel dual monitor arm with tall pole on desk mount

Ergotron

Ergotron 45-549-026 LX Dual Stacking Arm Tall Pole monitor accessory

SKU CH-SXXC-V9HNF MPN 45-549-026

Stacks two screens up to 40 inches on a tall pole for flexible desk positioning

  • TypeOthers
  • Supports two monitors up to 40 inches each
  • Tall pole enables ergonomic height adjustment for comfort
  • Polished aluminium with black accents for a sleek desk look
  • Add a third or fourth display using the accessory kit
  • Durable aluminium and steel construction ensures stability

Desk Mount for Two Displays

The Ergotron LX Dual Stacking Arm Tall Pole holds two LCD monitors up to 40 inches each. It attaches to a desk and lets you position both screens for ergonomic comfort. Builders wanting a third or fourth display can add the separate LX Arm, Extension and Collar Kit accessory.

Polished Aluminium Construction

The arm uses aluminium and steel with a polished aluminium finish and black accents. The tall pole provides the vertical reach needed for stacked screens. No active cooling or power draw is involved, so the mount adds no noise or heat to the workstation.

Maximum Screen Size 40 Inches

Each mounting position supports displays up to 40 inches. Monitors larger than this limit will not fit the arm. Buyers needing to mount screens above that size should choose a different solution.

Highlights

  • Supports two monitors up to 40 inches each
  • Tall pole enables ergonomic height adjustment for comfort
  • Polished aluminium with black accents for a sleek desk look
  • Add a third or fourth display using the accessory kit
  • Durable aluminium and steel construction ensures stability

Specifications

BrandErgotron, Inc
TypeOthers
Shipping weight9.98 kg
Package size762 × 457 × 198 mm

Questions about this item

How is the tall pole mounted to the desk, and which step is often missed?

Clamp the C-clamp or bolt the grommet base to the desk, then slide the 45-549-026 pole over the pin; the step often missed is tightening the set-screw collar that locks the pole height.

What part will need replacement after heavy daily adjustment?

The gas-spring cylinder inside each LX arm loses force over time; Ergotron sells a spring cartridge kit to restore lift without replacing the whole arm.

At what screen size does the arm reach its torque limit first?

The dual stacking arm is rated for monitors up to 40 inches; beyond that the pivot joints cannot hold position and will drift downward.

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