Overview
The Ergotron 98-478-216 Low-Profile Top-Mount C-Clamp is a desktop mounting accessory designed for selected Ergotron LX and MXV monitor arms. Its slim profile provides an alternative mounting arrangement for compatible workstations, including shallow work surfaces and freestanding sit-stand desks.
Designed for desktop edges measuring 18–25 mm (0.71–0.98 inches) thick, this clamp attaches from above the desk surface. Its white finish coordinates with compatible Ergotron equipment, making it suitable for professional offices, home workspaces, and adjustable workstation environments.
Key Features
- Low-profile construction: Helps minimize bulk around the desktop mounting point.
- 18–25 mm surface compatibility: Designed for desktop edges within the specified thickness range.
- Top-mount design: Provides an alternative attachment option for compatible monitor arms.
- Broad LX and MXV compatibility: Works with selected Ergotron desk-mounted monitor arm models.
- White finish: Coordinates with compatible white Ergotron mounting equipment.
Space-Saving Mounting Solution
The compact design helps create a streamlined workstation by minimizing additional bulk around the desk mounting point. It is intended for compatible monitor arms and can be useful in workspaces where conventional mounting arrangements are unsuitable.
Before installation, verify that the desktop meets the specified thickness requirements and that the rear edge provides enough clearance for the clamp. Follow the manufacturer's instructions to ensure the mounting components are securely fitted.
Installation Requirements
This clamp is designed for desktop edges measuring 18–25 mm (0.71–0.98 inches) thick. Approximately 20 mm (0.8 inches) of open space behind the desk surface is required for installation.
Measure the desktop and inspect the underside and rear edge for obstructions before purchasing. Confirm compatibility with the intended monitor arm and use the supplied attachment hardware according to the manufacturer's installation documentation.
Compatibility
The Ergotron 98-478-216 is compatible with selected Ergotron LX and MXV desk-mounted monitor arms, including:
- MXV Desk Arm: 45-625-216 and 45-625-224
- LX Desk Arm: 45-626-216 and 45-626-224
- LX Dual Direct Arm: 45-627-216 and 45-627-224
Check the exact arm model and mounting configuration before ordering. This accessory should not be assumed compatible with every Ergotron arm or with third-party mounting systems.
Applications
- Mounting compatible LX and MXV monitor arms on 18–25 mm desktop surfaces.
- Configuring shallow work surfaces and sit-stand workstations.
- Replacing a compatible low-profile clamp assembly.
- Maintaining a streamlined mounting arrangement in office and home workspaces.
DC Supplies Product Note
The Ergotron 98-478-216 is a mounting clamp accessory, not a complete monitor arm or monitor mounting system. Verify the desktop thickness, rear clearance, and exact monitor arm model before purchasing. This model is designed for 18–25 mm surfaces; choose a different mounting solution if your desktop falls outside this range.
Technical Specifications
| Brand | Ergotron |
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| Manufacturer Part Number | 98-478-216 |
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| Product Name | Low-Profile Top-Mount C-Clamp |
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| Product Type | Monitor arm mounting clamp |
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| Mounting Style | Low-profile top-mount C-clamp |
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| Mounting Location | Desktop edge |
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| Compatible Surface Thickness | 18–25 mm (0.71–0.98 inches) |
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| Required Rear Clearance | Approximately 20 mm (0.8 inches) |
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| Color | White |
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| Compatible Monitor Arms | Selected Ergotron LX and MXV desk arms |
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| Compatible Model Numbers | 45-625-216, 45-625-224, 45-626-216, 45-626-224, 45-627-216, 45-627-224 |
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| Approximate Product Weight | 1.8 lb (0.8 kg) |
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| Package Contents | Low-profile clamp base and attachment hardware |
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| UPC / GTIN | 698833082326 |
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| Limited Warranty | 10 years |
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| Environmental Compliance | RoHS and REACH listed by suppliers |
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Frequently Asked Questions
1. What is the Ergotron 98-478-216?
It is a low-profile top-mount C-clamp designed to attach selected Ergotron LX and MXV monitor arms to compatible desktop surfaces.
2. What desktop thickness does it support?
The clamp is designed for desktop edges measuring 18–25 mm (0.71–0.98 inches) thick.
3. How much clearance is required behind the desk?
Approximately 20 mm (0.8 inches) of open space behind the desk surface is required for installation.
4. Which monitor arms are compatible?
Compatible models include selected Ergotron MXV Desk Arms, LX Desk Arms, and LX Dual Direct Arms. Verify the exact model number before ordering.
5. What comes in the package?
The package includes the low-profile clamp base and attachment hardware. The monitor arm and display are not included.
6. Can I use this clamp with a thicker or thinner desk?
This model is specified for surfaces 18–25 mm thick. If your desk falls outside that range, select a mounting accessory designed for its thickness.
