The Ergotron LX Pro Desk Monitor Arm (45-712-290) is a desk-mounted monitor support designed to improve screen positioning while freeing up valuable desktop space. Its adjustable arm allows users to raise, lower, tilt, pan, and rotate a compatible monitor to suit their workstation and viewing preferences.
Finished in white, this LX Pro monitor arm combines aluminum construction, integrated cable management, and a low-profile C-clamp mounting system. It is suitable for professional offices, home offices, and other workspaces that benefit from flexible monitor positioning.
Key Features
- Ergonomic monitor positioning: Adjust screen height and viewing angle to suit different tasks and workstation layouts.
- Single-monitor support: Accommodates one compatible display weighing 1.8–10 kg (4–22 lb).
- Low-profile C-clamp: Attaches to a compatible desk edge without requiring a grommet mounting hole.
- Flexible movement: Supports monitor tilt, pan, and 360-degree screen rotation.
- Integrated cable management: Helps route monitor cables along the arm for a tidier workspace.
Monitor Compatibility and Adjustment
The LX Pro Desk Monitor Arm supports one monitor with a recommended screen size of up to 34 inches and a weight between 1.8 and 10 kg (4–22 lb). Screen size is a guideline; the monitor must also meet the arm's weight and mounting requirements.
The arm provides up to 33 cm (13 inches) of lift and extends up to approximately 64 cm (25 inches). The monitor pivot supports a tilt range of 70 degrees backward and 15 degrees forward, while the arm provides adjustable horizontal movement and 360-degree screen rotation.
Desk Mounting and VESA Compatibility
This model uses a low-profile C-clamp designed for desk surfaces approximately 12–40 mm (0.47–1.57 inches) thick. Adequate clearance beneath the desk edge is also required to accommodate the clamp and avoid obstructions.
The monitor mounting interface supports VESA MIS-D patterns of 75 × 75 mm and 100 × 100 mm. Confirm that the monitor has one of these mounting patterns and that its weight remains within the specified capacity.
Space-Saving Workstation Design
Mounting a monitor above the desk surface helps create additional room for documents, peripherals, and everyday work materials. The arm's adjustable design makes it easier to reposition the display when changing tasks or adapting the workstation for different users.
An integrated rotation stop can restrict movement at the base joint to help prevent the arm from swinging into a nearby wall. A tension-level indicator also helps users set the arm's counterbalance for the installed monitor.
Typical Applications
- Office and home-office workstations
- Professional desktop computer setups
- Administrative and productivity work areas
- Workspaces that require adjustable screen positioning
- Desks where preserving usable surface space is important
DC Supplies Product Note
Before ordering, verify the monitor's weight, VESA mounting pattern, and physical dimensions. Check that the desk edge is compatible with the C-clamp and that sufficient clearance is available beneath the mounting surface. Displays deeper than approximately 9 cm may affect the supported weight capacity.
Technical Specifications
| Brand | Ergotron |
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| MPN | 45-712-290 |
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| Product Type | Single-monitor desk arm |
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| Product Series | LX Pro |
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| Model | LX Pro Desk Monitor Arm, Low-Profile C-Clamp |
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| Colour | White |
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| Monitor Capacity | 1 monitor |
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| Recommended Screen Size | Up to 34 inches |
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| Weight Capacity | 1.8–10 kg (4–22 lb) |
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| Lift | Up to 33 cm (13 inches) |
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| Maximum Extension | Approximately 64 cm (25 inches) |
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| Tilt Range | 70° backward and 15° forward |
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| Arm Pan | 360° overall movement; monitor-pivot pan is 180° |
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| Monitor Rotation | 360° |
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| VESA Compatibility | MIS-D, 75 × 75 mm and 100 × 100 mm |
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| Mounting Type | Low-profile C-clamp desk mount |
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| Compatible Desk Thickness | 12–40 mm (0.47–1.57 inches) |
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| Cable Management | Integrated cable routing |
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| Construction | Aluminum |
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| Warranty | 10 years |
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Frequently Asked Questions
1. Which monitors are compatible with the Ergotron 45-712-290?
The arm supports one compatible monitor weighing 1.8–10 kg (4–22 lb), with a recommended screen size of up to 34 inches. The display must also use a supported VESA mounting pattern.
2. What type of desk mount does this model use?
It uses a low-profile C-clamp designed for compatible desk edges 12–40 mm thick. The clamp does not require a grommet hole.
3. Can the monitor be rotated into portrait orientation?
Yes. The monitor pivot supports 360-degree rotation, allowing compatible displays to be positioned in landscape or portrait orientation.
4. Which VESA mounting patterns are supported?
The arm supports VESA MIS-D patterns of 75 × 75 mm and 100 × 100 mm.
5. Does the arm help reduce desk clutter?
Yes. It raises the monitor above the desk surface and includes cable management features to help organize monitor cables.
6. What is the manufacturer's warranty?
Ergotron specifies a 10-year warranty for this LX Pro monitor arm, subject to the manufacturer's applicable warranty terms.
