Ergotron LX Dual Stacking Arm Tall Pole (White)

SKU 45-509-216

LX Dual Stacking Arm, Tall Pole (white)
Multi-Monitor Mount

Sleek and streamlined, the LX is the perfect desk accessory to add flexibility to your monitors. The tall pole accommodates monitors up to 40". Place them exactly where you want for ergonomic comfort. Includes two arms for two monitors; add arms to accommodate up to four monitors.

  • 22" (55.9 cm) tall pole provides configuration flexibility. Ideal for larger displays
  • Add a third or fourth display using the accessory LX Arm, Extension and Collar Kit
  • Position monitors for maximum ergonomic comfort with unparalleled range of motion
  • Helps reduce eye, back and neck strain
  • Folding arms free up space in constrained areas
  • Two-piece mounting clamp has keyhole-shaped holes for quick assembly and two clamping screws for secure installation
  • Easily turn one or both screens from landscape mode to portrait mode—view entire pages without scrolling
  • Passes Ergotron’s 10,000-cycle motion test, which ensures years of trouble-free height adjustment
  • Patented Constant Force™ lift-and-pivot motion technology



  • Includes two (2) LX arms and extensions, 22" pole, heavy-duty two-piece desk clamp base with dual screws, two (2) pole collars, two (2) caps, grommet mount plate and hardware, monitor mounting hardware
  • Can be configured to hold a laptop instead of an LCD display; also order the LX Notebook Tray (50-193-200)
  • Aluminum and steel construction offers greater durability
  • Snap-fit cap secures interface of arms to extensions for greater stability
  • New clamp and grommet mount base ensures greater stability of display and arm
  • † To facilitate stacking of monitors, maximum outside height of display should be no more than 21" (53 cm). To align monitors side by side, maximum outside width should be no more than 40" (102 cm). Most monitors with screen sizes of 40" or less fit within this specification
  • Mounting Standards: VESA FDMI MIS-D, 100/75, C (hole pattern: 100 x 100 mm & 75 x 75 mm)
  • Grommet mount attaches through hole 5/16" to 2" (7–51 mm) wide and up to 3" (80 mm) thick
  • * Weight Capacity
  • Two arms: 7–20 lbs (3.2–9.1 kg) each
  • Three or four arms: 7–11 lbs (3.2–5 kg) each
  • This product is certified in compliance with indoor air quality standards defined by ANSI/BIFMA pertaining to emissions of VOC (volatile organic compounds)
  • Product Weight: 19 lbs (8.62 kg)
  • Shipping Dimensions: 17.1" x 17.7" x 29.9" (18 x 45 x 76 cm)
  • Shipping Weight: 24 lbs (10.9 kg)
  • Warranty: Ten (10) years

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