The Ergotron LX Vertical Stacking Dual Monitor Arm is a desk clamp mount designed for two monitors up to 40 inches and 7 to 22 pounds each. Compatible with VESA patterns 75x75mm and 100x100mm, this system includes two LX arms, a 23-inch pole, heavy-duty desk clamp, grommet mount plate, and all necessary hardware for flexible installation options on desktop surfaces.
This dual monitor arm offers 13 inches of vertical lift and rises 31.7 inches from the desktop, with 360-degree rotation and 75-degree tilt for ergonomic positioning. Users can stack monitors vertically or position them to either side. The system is backed by Ergotron's 10-year warranty and extensive quality testing to ensure long-term stability and durability.
Ergotron LX 45-509-224 Prices
Ergotron Ergotron LX 45-509-224 prices start from $456, averaging $456, with a high of $456 across 1 retailer.
$456
Lowest
$456
Average
$456
Highest
Featured In
Specifications
| Mount Type | Desk Clamp / Grommet Mount |
| Number of Monitors | 2 |
| Max Screen Size | 40 in |
| Weight Capacity | 22 lbs |
| VESA | 75x75mm, 100x100mm |
| Arm Movement | 360° rotation, 75° tilt, 13" vertical lift |
Where to Buy
| Variant | Retailer | Price | Stock | |
|---|---|---|---|---|
| Ergotron LX 45-509-224 | amazon | $456 | ✓ In stock | Buy → |
More from Ergotron

The Ergotron LX is a single monitor arm designed for displays up to 34 inches and weighing between 7 to 25 pounds. It su…
Read more ↓Show less ↑
The Ergotron LX is a single monitor arm designed for displays up to 34 inches and weighing between 7 to 25 pounds. It supports both VESA 75x75mm and 100x100mm mounting patterns. The arm features a modular design with included desk clamp and grommet mount options, accommodating desks ranging from 0.4 to 2.4 inches thick with the clamp or up to 2.25 inches with the grommet mount.
This monitor arm offers extensive ergonomic adjustability with 13 inches of vertical lift, 360-degree rotation, and 75 degrees of tilt to help users find their optimal viewing position. Built-in cable management keeps cables organized and hidden for a clean workspace appearance. The arm is backed by Ergotron's 10-year warranty and includes a suite of compatible accessories for further customization.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 1
- Max Screen Size
- 34 in
- Weight Capacity
- 7-25 lbs
- VESA
- 75x75mm, 100x100mm
- Arm Movement
- 13 inches lift, 360° rotation, 75° tilt

Premium single monitor arm designed for large displays up to 49 inches and weights between 20-42 lbs. Features full moti…
Read more ↓Show less ↑
Premium single monitor arm designed for large displays up to 49 inches and weights between 20-42 lbs. Features full motion capability with 11.5 inches of vertical lift and 360-degree rotation, allowing screens to rise 17.8 inches above the desktop. Includes both desk clamp and grommet mounting options for flexible installation on surfaces with edge thickness from 0.4 to 2.6 inches.
Supports multiple VESA patterns including 75x75mm, 100x100mm, 200x100mm, and 200x200mm, with adapter kits available for larger patterns. Heavy-duty construction includes cable management and low-profile design for tight spaces. Backed by a 10-year warranty and Ergotron's technical support.
- Mount Type
- Desk Clamp / Grommet
- Number of Monitors
- 1
- Max Screen Size
- 49 in
- Weight Capacity
- 42 lbs
- VESA
- 75x75, 100x100, 200x100, 200x200
- Arm Movement
- 360° rotation, 75° tilt, 11.5" lift

Single monitor desk mount designed for large curved ultrawide displays up to 49 inches and weighing 28 to 42 pounds. Fea…
Read more ↓Show less ↑
Single monitor desk mount designed for large curved ultrawide displays up to 49 inches and weighing 28 to 42 pounds. Features full range of motion with 11.5 inches of lift, allowing screens to rise 17.8 inches from the work surface. Includes 360-degree rotation and 20-degree tilt adjustment for customizable positioning. Compatible with VESA patterns 75x75mm and 100x100mm.
Comes with desk clamp mount for surface edges 0.4 to 2.6 inches thick and grommet mount for installation through desk holes. Built with extensive quality testing to ensure stability and security. Backed by a 10-year warranty and expert technical support from Ergotron.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 1
- Max Screen Size
- 49 in
- Weight Capacity
- 42 lbs
- VESA
- 75x75mm, 100x100mm
- Arm Movement
- 360° rotation, 20° tilt, 11.5" lift

The Ergotron HX VHD is a premium single monitor arm designed for large curved ultrawide displays up to 57 inches. It sup…
Read more ↓Show less ↑
The Ergotron HX VHD is a premium single monitor arm designed for large curved ultrawide displays up to 57 inches. It supports VESA patterns 75x75mm and 100x100mm, with a weight capacity of 28.7 to 37.5 pounds. The arm accommodates monitors 9 to 14 inches deep and includes both desk clamp and grommet mounting options for flexible installation on surfaces up to 2.6 inches thick.
This heavy-duty arm offers extensive movement capabilities with 11.5 inches of vertical lift, 17.6 inches of horizontal extension, and 180 degrees of rotation. It provides 20 degrees of positive tilt and 5 degrees of negative tilt for optimal viewing angles. Backed by a 10-year warranty and expert technical support, the HX VHD is built for stability and long-term reliability in gaming and professional environments.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 1
- Max Screen Size
- 57 in
- Weight Capacity
- 37.5 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- 11.5" vertical, 17.6" horizontal, 180° rotation, 20° tilt, -5° tilt
You May Also Like

Single monitor arm designed for ultrawide displays up to 49 inches and 44 lbs. Features a spring-assist tension arm that…
Read more ↓Show less ↑
Single monitor arm designed for ultrawide displays up to 49 inches and 44 lbs. Features a spring-assist tension arm that counterbalances monitor weight for ergonomic height adjustments. Supports both 75x75mm and 100x100mm VESA patterns. Mounts via heavy-duty C-clamp to desks up to 3.2 inches thick, with optional grommet mount for 1.4-inch desks.
Offers extensive articulation including 11 inches of height adjustment, 180-degree swivel, 360-degree rotation, and tilt range from +50 to -20 degrees. Integrated cable management covers keep cords organized during repositioning. Detachable VESA plate simplifies installation. Designed for gaming and professional setups requiring frequent monitor adjustments.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 1
- Max Screen Size
- 49 in
- Weight Capacity
- 44 lbs
- VESA
- 75x75mm, 100x100mm
- Arm Movement
- 11" height, 180° swivel, 360° rotation, +50° to -20° tilt

Single monitor arm designed for screens between 13 and 32 inches with a weight capacity of 4.4 to 19.8 lbs. Features an…
Read more ↓Show less ↑
Single monitor arm designed for screens between 13 and 32 inches with a weight capacity of 4.4 to 19.8 lbs. Features an automotive-grade gas spring mechanism that has undergone 20,000 motion tests for durability. Compatible with VESA patterns 75x75mm and 100x100mm. Can be installed in approximately 3 minutes with included hardware.
Offers extensive adjustability with tilt range from -50° to +30°, ±90° swivel, and 360° rotation capability. Lifts monitors up to 39.6cm from the desktop with one-handed operation. Available with either C-clamp or grommet base mounting options to maximize desk space utilization compared to traditional monitor stands.
- Mount Type
- Desk Clamp / Grommet
- Number of Monitors
- 1
- Max Screen Size
- 32 in
- Weight Capacity
- 19.8 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- Tilt -50° to +30°, Swivel ±90°, Rotation 360°

The monTEK MA1006PXLBK-D is a heavy-duty dual monitor stand designed to support two displays ranging from 17 to 32 inche…
Read more ↓Show less ↑
The monTEK MA1006PXLBK-D is a heavy-duty dual monitor stand designed to support two displays ranging from 17 to 32 inches. Built with reinforced steel joints and thickened VESA plates, it provides stable support with a weight capacity of 22 lbs per arm. The stand features anti-slip base pads to minimize wobble and is compatible with VESA 75×75mm and 100×100mm mounting patterns for broad device compatibility.
This articulating monitor arm offers full adjustability with tilt, swivel, and rotation on each monitor head, allowing you to switch between landscape and portrait orientations. The extendable arms can be positioned side by side or stacked for multitasking workflows. Installation is flexible with both C-clamp and grommet base options included, making it suitable for home offices, gaming setups, dorm rooms, and shared workspaces.
- Mount Type
- Desk Clamp / Grommet
- Number of Monitors
- 2
- Max Screen Size
- 32 in
- Weight Capacity
- 22 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- Tilt, Swivel, Rotate, Extend/Retract

Single monitor arm featuring a mechanical spring mechanism designed to eliminate gas loss and sagging. Supports displays…
Read more ↓Show less ↑
Single monitor arm featuring a mechanical spring mechanism designed to eliminate gas loss and sagging. Supports displays up to 32 inches with VESA 75/100mm compatibility. The slimmer design reduces desk space requirements and wall obstruction. Installation is straightforward using either C-clamp or grommet base mounting options.
Offers extensive positioning flexibility with 360-degree rotation, -25 to 90-degree tilt range, and 230mm height adjustment. The upgraded joint construction provides enhanced stability and security. Ideal for ergonomic workspace setup to reduce neck strain by positioning monitors at natural eye level.
- Mount Type
- Monitor Arm
- Number of Monitors
- 1
- Max Screen Size
- 32 in
- Weight Capacity
- — lbs
- VESA
- 75/100
- Arm Movement
- —

The WALI GSMP002N is a dual monitor arm designed to support screens from 13 to 32 inches with a weight capacity of 22 lb…
Read more ↓Show less ↑
The WALI GSMP002N is a dual monitor arm designed to support screens from 13 to 32 inches with a weight capacity of 22 lbs per monitor. It accommodates VESA 75x75mm and 100x100mm mounting patterns, making it compatible with most standard displays. The mount offers flexible positioning with 90-degree swivel, 70/-45-degree tilt, and 360-degree rotation capabilities.
This dual monitor stand provides extensive adjustability with up to 19.3 inches of horizontal extension and 17.3 inches of vertical height adjustment. It features dual mounting options including a C-clamp and hole base, allowing installation on various desk types. The ergonomic design reduces neck and eye strain during extended use, making it suitable for productivity-focused workspaces.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 2
- Max Screen Size
- 32 in
- Weight Capacity
- 22 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- —

The WALI GSDM003 is a triple monitor mount designed to accommodate screens up to 32 inches with VESA compatibility of 75…
Read more ↓Show less ↑
The WALI GSDM003 is a triple monitor mount designed to accommodate screens up to 32 inches with VESA compatibility of 75x75mm or 100x100mm. It supports up to 15.4 lbs per monitor and features a robust construction with high-grade materials for stable desk mounting.
This mount offers extensive adjustability with tilt range of +35°/-35°, swivel of +90°/-90°, and full 360° rotation capability. It includes both clamp and grommet base options, reaching maximum heights of 17.1 inches and extensions up to 27.2 inches for flexible workspace configurations.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 3
- Max Screen Size
- 32 in
- Weight Capacity
- 15.4 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- Tilt ±35°, Swivel ±90°, Rotate 360°

The MOUNTUP MU8011B is a single monitor arm designed for screens between 22 and 32 inches, with a weight capacity of 4.4…
Read more ↓Show less ↑
The MOUNTUP MU8011B is a single monitor arm designed for screens between 22 and 32 inches, with a weight capacity of 4.4 to 22 lbs. It supports VESA patterns 75x75mm and 100x100mm, making it compatible with most major monitor brands including Samsung, ASUS, Acer, LG, HP, AOC, Dell, and Sceptre. The arm features a quick-release VESA plate for secure, wobble-free mounting.
This full-motion mount offers extensive adjustability with tilt range of 85° up and 45° down, 180° swivel, and 360° rotation for landscape or portrait orientation. The arm extends up to 21 inches and rises to 17.3 inches in height. Installation is flexible with both C-clamp and grommet base options accommodating desk thicknesses from 0.39" to 2.76". Integrated cable management keeps wires organized and concealed within the arm.
- Mount Type
- Full Motion Desk Mount
- Number of Monitors
- 1
- Max Screen Size
- 32 in
- Weight Capacity
- 22 lbs
- VESA
- 75x75, 100x100
- Arm Movement
- Tilt 85°/-45°, Swivel 180°, Rotate 360°

The WALI GSDM004S is a quad monitor mount designed to support four displays ranging from 13 to 27 inches. It accommodate…
Read more ↓Show less ↑
The WALI GSDM004S is a quad monitor mount designed to support four displays ranging from 13 to 27 inches. It accommodates VESA 75/100mm mounting patterns and can hold up to 19.8 lbs per monitor. The mount features a tall center pole design with a maximum height of 32.2 inches, allowing for flexible vertical positioning of multiple screens.
This mount offers extensive adjustment capabilities with the top bracket providing ±20° tilt and 180° swivel, while side brackets feature ±35° tilt and 180° swivel. All brackets include full 360° rotation for optimal viewing angles. The steel construction ensures durability and stability, backed by over 20,000 fatigue tests. Installation is straightforward with both C-clamp and grommet mounting options, plus integrated cable management.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 4
- Max Screen Size
- 27 in
- Weight Capacity
- 19.8 lbs
- VESA
- 75/100
- Arm Movement
- ±20° tilt (top), ±35° tilt (sides), 180° swivel, 360° rotation

The monTEK triple monitor stand mount accommodates three displays between 17 and 32 inches, with each arm supporting up…
Read more ↓Show less ↑
The monTEK triple monitor stand mount accommodates three displays between 17 and 32 inches, with each arm supporting up to 22 lbs. Compatible with VESA 75x75mm and 100x100mm mounting patterns, this mount installs via C-clamp or grommet base for flexible desk integration. Integrated cable organizers help maintain a clean workspace.
Full-range articulation includes tilt adjustment from -45° to +45°, swivel from -90° to +90°, and 360° rotation for optimal ergonomic positioning. High-grade construction with advanced joint design ensures stable, level display placement. Quick-release VESA plates simplify monitor attachment, with typical setup completed in 15 minutes.
- Mount Type
- Desk Clamp / Grommet
- Number of Monitors
- 3
- Max Screen Size
- 32 in
- Weight Capacity
- 22 lbs
- VESA
- 75x75mm / 100x100mm
- Arm Movement
- Tilt -45° to +45°, Swivel -90° to +90°, 360° Rotation

This triple monitor mount accommodates screens up to 32 inches with VESA 75x75mm or 100x100mm mounting patterns. It supp…
Read more ↓Show less ↑
This triple monitor mount accommodates screens up to 32 inches with VESA 75x75mm or 100x100mm mounting patterns. It supports monitors weighing between 4.4 and 17.6 lbs each. The mount lifts all three displays off your desk surface, freeing up valuable workspace and creating a more organized work environment.
The mount offers full adjustability with swivel, tilt, and rotation capabilities, allowing you to customize viewing angles for comfort and productivity. It features dual installation options: a C-clamp mount for desks 0.39-3.15 inches thick or a grommet mount for desks 0.39-2.36 inches thick. Both mounting methods provide secure, stable support for extended use.
- Mount Type
- Desk Clamp / Grommet Mount
- Number of Monitors
- 3
- Max Screen Size
- 32 in
- Weight Capacity
- 17.6 lbs
- VESA
- 75x75mm, 100x100mm
- Arm Movement
- Swivel, Tilt, Rotation
