Overview
The Ergotron 98-477-224 Low-Profile Top-Mount C-Clamp is a desktop mounting accessory designed for selected Ergotron LX and MXV monitor arms. It provides an alternative mounting method for compatible arms, particularly where a compact installation is preferred or conventional clamp arrangements are unsuitable.
Designed for desk surfaces measuring 12–18 mm (0.47–0.71 inches) thick, this clamp is well suited to shallow work surfaces and freestanding sit-stand workstations. Its matte black finish complements compatible Ergotron equipment, while the low-profile construction helps maintain a clean and organized workstation.
Key Features
- Low-profile design: Attaches above the desk surface without unnecessary mounting bulk.
- Defined surface compatibility: Designed for desk edges measuring 12–18 mm (0.47–0.71 inches) thick.
- Simple assembly: Uses a single screw for installation according to the manufacturer's instructions.
- Compatible arm options: Supports selected Ergotron LX and MXV desk-mounted monitor arms.
- Matte black finish: Coordinates with compatible black monitor arms and workstation accessories.
Space-Saving Mounting Solution
The slim clamp design offers an alternative for workstations where minimizing mounting bulk is important. It attaches to the desk edge and is particularly useful for shallow desktop surfaces and certain freestanding sit-stand configurations.
For a secure installation, the desktop must meet the specified thickness requirements, and the area behind the desk must provide adequate clearance. Always confirm that the selected monitor arm supports this mounting accessory.
Installation Requirements
The clamp is designed for work surfaces measuring 12–18 mm (0.47–0.71 inches) thick. Installation requires approximately 20 mm (0.78 inches) of open space behind the desk surface.
Measure the desktop before ordering and check for obstructions near the mounting point. Install the clamp according to Ergotron's instructions, ensuring that all attachment hardware is correctly fitted.
Compatibility
Ergotron identifies the following compatible monitor arm models:
- 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
Confirm the exact monitor arm model and its mounting requirements before purchase. This clamp is not a universal accessory for every Ergotron monitor arm. Low-profile clamp accessories may not be suitable for retrofitting arms originally equipped with two-piece clamps or grommet mounts.
Applications
- Mounting compatible monitor arms on shallow desktop surfaces.
- Configuring selected freestanding sit-stand workstations.
- Replacing a compatible low-profile clamp assembly.
- Creating a compact monitor mounting arrangement in offices and home workspaces.
DC Supplies Product Note
The Ergotron 98-477-224 is a mounting clamp accessory, not a complete monitor arm or monitor mounting system. Before ordering, verify desktop thickness, rear clearance, and compatibility with the intended arm. The product is specified for 12–18 mm surfaces and should not be assumed suitable for thicker desks.
Technical Specifications
| Brand | Ergotron |
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| Manufacturer Part Number | 98-477-224 |
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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 | 12–18 mm (0.47–0.71 inches) |
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| Required Rear Clearance | Approximately 20 mm (0.78 inches) |
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| Color | Matte black |
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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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| Product Weight | Approximately 1.8 lb (0.8 kg) |
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| Package Contents | Low-profile clamp base and attachment hardware |
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| UPC | 698833082340 |
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| Limited Warranty | 10 years |
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| Environmental Compliance | RoHS and REACH |
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Frequently Asked Questions
1. What is the Ergotron 98-477-224?
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 desk thickness does it support?
The clamp is designed for desktop edges measuring 12–18 mm (0.47–0.71 inches) thick.
3. How much clearance is needed behind the desk?
Approximately 20 mm (0.78 inches) of open space behind the desk surface is required for installation.
4. Which monitor arms are compatible?
Compatible models include selected MXV Desk Arms, LX Desk Arms, and LX Dual Direct Arms. Check the exact model number before ordering.
5. What is included in the package?
The package includes the low-profile clamp base and attachment hardware. The monitor arm and display are not included.
6. Can this clamp be used with any Ergotron arm?
No. Compatibility is limited to supported models. Verify the arm model and original mounting configuration before purchasing this accessory.
