The Ergotron HX Desk Monitor Arm (45-475-224) is a heavy-duty desk-mounted monitor arm designed for large, compatible displays. Its articulated structure allows users to reposition the screen for comfortable viewing, while the arm can fold back toward its base to help reclaim desk space when the display is not in use.
Finished in matte black, the HX combines Ergotron's Constant Force movement technology with integrated cable management and versatile desk-mounting options. It is suitable for professional offices, home workstations, and other environments that require adjustable support for heavier monitors.
Key Features
- Heavy-display support: Supports compatible monitors weighing 9.1–19.1 kg (20–42 lb).
- Constant Force technology: Enables smooth monitor repositioning when the arm is correctly adjusted for the display's weight.
- Flexible viewing angles: Supports height adjustment, tilt, pan, and screen rotation.
- Two desk-mounting options: Includes a desk clamp and grommet mounting hardware for compatible installations.
- Integrated cable management: Routes cables beneath the arm and through the extension to help keep the workspace organized.
Display Compatibility and Adjustment
The HX Desk Monitor Arm is designed for one compatible monitor weighing between 9.1 and 19.1 kg (20–42 lb). It supports displays up to approximately 49 inches, subject to the monitor's weight, dimensions, depth, and mounting requirements.
The arm provides up to 29.2 cm (11.5 inches) of lift, with 75 degrees of tilt adjustment, 180 degrees of pan, and 360-degree screen rotation. A rotation stop at the base helps limit movement where necessary to avoid contact with nearby walls or workstation partitions.
For deep or curved displays, weight distribution and screen depth are especially important. Displays weighing more than 12.7 kg (28 lb) with a depth of 15–30 cm (6–12 inches) require Ergotron's compatible HX Heavy-Duty Tilt Pivot accessory, part number 98-540-216. Confirm compatibility before selecting an accessory.
Desk Mounting Options
The product includes a desk clamp and a grommet mounting option. The clamp attaches to a compatible desk edge approximately 1–6.6 cm (0.4–2.6 inches) thick. The grommet option uses a suitable opening through the desk surface.
Before installation, check the desk material, surface thickness, available clearance, and suitability for supporting the combined load of the arm and display. Follow the manufacturer's installation instructions for the selected mounting method.
VESA Compatibility
The HX supports VESA MIS-D, MIS-E, and MIS-F mounting standards. Verify the display's mounting-hole pattern and weight before installation. The display must remain within the arm's supported weight range for the mounting configuration used.
Space-Saving Design and Cable Management
The articulated arm allows a monitor to be brought closer to the user or moved away when additional desk space is needed. When not in use, the arm folds back over its base into a compact position.
Integrated cable routing helps keep monitor cables organized beneath the arm and inside the extension. The arm also supports portrait and landscape screen positioning, with a rotation lockout to help maintain the intended orientation.
Typical Applications
- Professional office workstations
- Home-office setups with large monitors
- Workstations using compatible heavy or curved displays
- Productivity environments requiring adjustable screen positioning
- Desks where cable organization and usable surface space are priorities
DC Supplies Product Note
Before ordering, verify that the display weighs 9.1–19.1 kg (20–42 lb) and uses a compatible VESA mounting pattern. For deeper displays, check Ergotron's requirements for the optional heavy-duty tilt pivot. Confirm desk compatibility and ensure all cables have sufficient slack throughout the arm's range of movement.
Technical Specifications
| Brand | Ergotron |
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| MPN | 45-475-224 |
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| Product Type | Heavy-duty desk monitor arm |
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| Product Series | HX |
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| Model | HX Desk Monitor Arm |
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| Colour / Finish | Matte black |
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| Display Capacity | 1 monitor |
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| Maximum Recommended Screen Size | Up to approximately 49 inches |
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| Weight Capacity | 9.1–19.1 kg (20–42 lb) |
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| Lift | 29.2 cm (11.5 inches) |
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| Tilt | 75° total adjustment range |
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| Pan | 180° |
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| Screen Rotation | 360° |
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| VESA Compatibility | MIS-D, MIS-E, and MIS-F |
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| Mounting Options | Desk clamp or grommet mount |
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| Desk Clamp Thickness | Approximately 1–6.6 cm (0.4–2.6 inches) |
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| Movement Technology | Constant Force |
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| Cable Management | Integrated cable routing |
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| Rotation Control | Base rotation stop and screen rotation lockout |
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| Optional Accessory | HX Heavy-Duty Tilt Pivot, MPN 98-540-216, for qualifying deep displays |
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| Warranty | 10 years, subject to manufacturer's terms |
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Frequently Asked Questions
1. How much weight can the Ergotron 45-475-224 support?
The arm supports compatible displays weighing between 9.1 and 19.1 kg (20–42 lb). Displays outside this range are not suitable for the standard configuration.
2. What is the maximum monitor size?
Ergotron lists support for displays up to approximately 49 inches. Screen dimensions, depth, and weight must also meet the product's compatibility requirements.
3. Does the monitor arm include mounting hardware?
The product specification lists the arm, extension, monitor pivot, desk clamp, grommet mount, and monitor mounting hardware as included components.
4. Which VESA mounting standards are supported?
The HX Desk Monitor Arm supports VESA MIS-D, MIS-E, and MIS-F standards. Check the display's mounting pattern before purchase.
5. Is a special accessory required for deep curved monitors?
Some deep displays require the HX Heavy-Duty Tilt Pivot, MPN 98-540-216. In particular, Ergotron specifies this accessory for displays weighing over 12.7 kg (28 lb) with a depth of 15–30 cm (6–12 inches).
6. What warranty applies to this model?
Ergotron lists a 10-year warranty for the HX Desk Monitor Arm. Coverage is subject to the manufacturer's applicable terms.
