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Ergotron 45-509-216 LX Dual Stacking Arm Desk Mount - White - 2 Displays Up to 40" - 40 lb Load - 75 x 75/100 x 100 VESA

SKU: 45-509-216
UPC: 698833061581
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MSRP: $754.06
$784.95
$571.95
Save: $182.11 (23.20%)
Warranty Information: 10 Year
Condition: New
Width: 44.98 (cm)
Height: 18.01 (cm)
Depth: 76.99 (cm)
Availability: Canada: High Availability
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Product Features

Description

Product Overview

The Ergotron LX Dual Stacking Arm Desk Mount (45-509-216) is a professional-grade mounting solution designed to support two monitors with a maximum screen size of 40 inches each and a total load capacity of 40 pounds. Engineered for durability and flexibility, this white desk mount features a tall pole design that allows for vertical stacking of displays, optimizing desk space and improving ergonomics in office, home office, or commercial environments.

Built with heavy-duty components, including a two-piece desk clamp base and dual screws, this mount ensures stable and secure installation. The LX series is known for its robust construction and smooth articulation, providing users with easy adjustment of monitor height, tilt, and swivel to achieve optimal viewing angles and reduce neck and eye strain.

Monitor Panel
40"
Display
75 x 75,100 x 100
Mounting Specifications
Displays Supported2
Max Screen Size40"
Max Load Capacity40 lb (18143.69 g)
Physical Profile
ColorWhite
VESA Mounting75 x 75, 100 x 100
Warranty10 Year

Technical Overview

This desk mount supports dual monitors with VESA mounting patterns of 75x75 mm and 100x100 mm, compatible with a wide range of modern displays. The maximum load capacity of 40 pounds (18143.69 grams) accommodates heavier monitors, including those with advanced features like high refresh rates or built-in speakers, while the 40-inch screen size limit covers most standard office and gaming monitors.

The mount's dimensions include a height of 7.09 inches (180.09 mm), width of 17.71 inches (449.83 mm), and depth of 30.31 inches (769.87 mm), with an approximate weight of 19 pounds (8618.26 grams) for the assembled unit. These specs ensure a compact footprint that fits on most desks without excessive protrusion.

Relevant factors for this section include Device Supported, Number of Displays Supported, Maximum Load Capacity, Color Family. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.

Max Screen Size40"
Max Load40 lb
VESA Patterns75x75, 100x100
Dual Monitor SupportTall Pole DesignHeavy-Duty Clamp

Key Product Advantages

The Ergotron LX Dual Stacking Arm offers significant advantages for users seeking to enhance their workspace efficiency and comfort. Its vertical stacking capability maximizes desk real estate, allowing for a cleaner and more organized setup compared to side-by-side configurations.

Space Optimization

By stacking monitors vertically, this mount reduces the horizontal footprint, freeing up desk space for other peripherals or documents, ideal for compact workstations.

  • Vertical stacking saves width
  • Fits on smaller desks
  • Reduces clutter

Ergonomic Flexibility

The LX arms provide smooth adjustment for height, tilt, and swivel, enabling users to customize viewing angles to reduce strain and improve productivity during long work sessions.

  • Adjustable height and tilt
  • Easy swivel motion
  • Promotes better posture

Durable Construction

With a heavy-duty desk clamp and robust pole, this mount ensures long-term stability and reliability, backed by a 10-year limited warranty for peace of mind.

  • Sturdy clamp base
  • 10-year warranty
  • Reliable performance

Deployment / Use Cases

This desk mount is versatile enough for various professional and personal settings. In office environments, it supports dual-monitor setups for tasks like coding, graphic design, or financial analysis, where screen real estate boosts efficiency. The vertical stacking is particularly useful for referencing documents on one screen while working on another, streamlining workflows.

For home offices or gaming setups, the mount accommodates larger monitors up to 40 inches, enhancing multimedia experiences or multitasking. Its white color blends seamlessly with modern decor, while the secure clamp installation avoids permanent desk modifications, making it suitable for rental spaces or temporary setups.

Office Productivity

Ideal for professionals needing dual screens for spreadsheets, presentations, or collaborative tools, with ergonomic adjustments to support all-day use.

Home and Gaming

Supports gaming monitors or entertainment displays, offering flexible positioning for immersive experiences without desk clutter.

Physical Profile

The mount features a sleek white finish that complements most office and home aesthetics. Its dimensions—7.09" height, 17.71" width, and 30.31" depth—provide a stable base without occupying excessive desk space. The approximate weight of 19 pounds ensures it remains steady during adjustments, while the included grommet mount plate offers an alternative installation method for desks with pre-drilled holes.

The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 7.09" (180.09 mm), 17.71" (449.83 mm), 30.31" (769.87 mm), 19 lb (8618.26 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.

Color
White
Dimensions
Width
17.71" (449.83 mm)
Depth
30.31" (769.87 mm)
Height
7.09" (180.09 mm)
Weight
19 lb (8618.26 g)

What's in the Box

The package includes all necessary components for installation: 2 LX arms and extensions, a 22" tall pole, a heavy-duty two-piece desk clamp base with dual screws, 2 pole collars, 2 caps, a grommet mount plate with hardware, and monitor mounting hardware. This comprehensive set ensures easy setup without additional purchases.

2 x LX Arms and Extensions 22" Pole Heavy-duty Two-piece Desk Clamp Base with Dual Screws
2 x Pole Collars
2 x Caps Grommet Mount Plate and Hardware Monitor Mounting Hardware
2 x LX Arms and Extensions
[custom-highlights]

Highlights

  • Supports two monitors with vertical stacking for space efficiency
  • Maximum screen size of 40 inches per display
  • Load capacity of 40 pounds (18143.69 grams) for heavy monitors
  • VESA mounting patterns: 75x75 mm and 100x100 mm
  • White color with sleek design for modern workspaces
  • Includes heavy-duty desk clamp and grommet mount options
  • Tall pole allows for adjustable height and ergonomic positioning
  • Backed by a 10-year limited warranty for durability assurance
  • Package contains all hardware for straightforward installation
  • Dimensions: 7.09" H x 17.71" W x 30.31" D (approx. 19 lb weight)
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerErgotron, Inc
Manufacturer Part Number45-509-216
Brand NameErgotron
Product SeriesLX
Product NameLX Dual Stacking Arm, Tall Pole (White)
Product TypeDesk Mount
Product Information
Device SupportedMonitor
Number of Displays Supported2
Maximum Load Capacity40 lb (18143.69 g)
Maximum Screen Size Supported40"
Physical Characteristics
Color FamilyWhite
Product ColorWhite
Mounting Pattern75 x 75,100 x 100
Height7.09" (180.09 mm)
Width17.71" (449.83 mm)
Depth30.31" (769.87 mm)
Weight (Approximate)19 lb (8618.26 g)
Miscellaneous
Package Contents2 x LX Arms and Extensions 22" Pole Heavy-duty Two-piece Desk Clamp Base with Dual Screws 2 x Pole Collars 2 x Caps Grommet Mount Plate and Hardware Monitor Mounting Hardware
Country of OriginChina
Warranty
Limited Warranty10 Year
[/custom-specifications][custom-user-manual]

User Manual

This section contains official documentation provided by the manufacturer, including product manuals, brochures, and supplementary materials.
[/custom-user-manual][custom-faq]

FAQ

How many monitors does this Ergotron desk mount support?

This desk mount supports two monitors, allowing for a dual-display setup. It is designed with vertical stacking capability, which helps optimize desk space by arranging one monitor above the other rather than side-by-side, making it ideal for tasks that benefit from additional screen real estate like multitasking or reference work.

What is the maximum screen size and weight capacity for this mount?

The mount supports monitors up to 40 inches in screen size per display and has a maximum load capacity of 40 pounds (18143.69 grams). This capacity accommodates a wide range of modern monitors, including those with heavier builds due to features like high refresh rates, built-in speakers, or advanced panel technologies, ensuring stable and secure mounting.

What VESA mounting patterns are compatible with this desk mount?

This desk mount is compatible with VESA mounting patterns of 75x75 mm and 100x100 mm. These are standard patterns for most monitors, ensuring broad compatibility across various brands and models. The mount includes the necessary hardware to attach monitors with these patterns, simplifying installation without requiring additional adapters.

Does this mount include a desk clamp, and is there an alternative mounting option?

Yes, the package includes a heavy-duty two-piece desk clamp base with dual screws for secure attachment to most desks. Additionally, it comes with a grommet mount plate and hardware, providing an alternative installation method for desks that have pre-drilled holes. This flexibility allows users to choose the best option based on their desk type and preference.

What is the warranty period for this Ergotron desk mount?

This desk mount comes with a 10-year limited warranty from Ergotron. This extensive warranty period reflects the product's durable construction and reliability, offering peace of mind for long-term use in professional or personal environments. It covers defects in materials and workmanship under normal use conditions.

What are the dimensions and weight of this desk mount?

The mount has dimensions of approximately 7.09 inches in height, 17.71 inches in width, and 30.31 inches in depth, with an approximate weight of 19 pounds (8618.26 grams). These specs ensure a stable footprint that fits on most desks without excessive protrusion, while the weight contributes to its steadiness during adjustments and use.

[/custom-faq]
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Ergotron 45-509-216 LX Dual Stacking Arm Desk Mount - White - 2 Displays Up to 40" - 40 lb Load - 75 x 75/100 x 100 VESA
MSRP: $754.06
$784.95
$571.95
Save: $182.11 (23.20%)
Available & Ready to Ship