1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Ergounion E66 Dual Monitor Mount. Please read this manual thoroughly before installation to ensure correct setup and safe operation. Retain this manual for future reference.
2. Safety Information
- Ensure your desk surface is strong enough to support the combined weight of the mount and two monitors.
- Do not exceed the maximum weight capacity of 25 lbs (11.3 kg) per monitor arm.
- Verify that your monitors are VESA compatible (75x75mm or 100x100mm).
- Always tighten all screws and bolts securely during installation.
- Adjust spring tension carefully to match your monitor's weight to prevent sudden movement.
- Keep children and pets away during installation.
3. Package Contents
Please check that all components are present and undamaged before proceeding with installation. If any parts are missing or damaged, contact customer support.
The package typically includes:
- Monitor Arms (2)
- Desk Pole
- C-Clamp Base
- Grommet Base Components
- VESA Plates (2)
- Hardware Kit (screws, washers, Allen wrenches)
- Cable Management Clips
4. Specifications
| Feature | Specification |
|---|---|
| Model | E66 |
| Monitor Size Compatibility | 13" - 40" per arm |
| Weight Capacity | Up to 25 lbs (11.3 kg) per arm |
| VESA Compatibility | 75x75mm, 100x100mm |
| Desk Thickness (C-Clamp) | 0.4" - 2.4" (10mm - 60mm) |
| Desk Thickness (Grommet) | Up to 2.25" (57mm) |
| Material | Aluminum |
| Movement | Rotate, Swivel, Tilt |
| Product Dimensions (LxWxH) | 17.7 x 17.7 x 7.8 inches (approximate) |
| Item Weight | 14.52 pounds |
5. Setup and Installation
Follow these steps carefully to install your Ergounion E66 Dual Monitor Mount.
5.1 Choose Your Mounting Option: C-Clamp or Grommet
The E66 mount offers two installation methods to suit your desk type.

Image: Detail of the C-Clamp mounting mechanism, showing how it attaches to the edge of a desk.

Image: Exploded view of the Grommet mounting base, illustrating how it secures through a desk hole.
C-Clamp Installation:
- Attach the C-clamp base to the desk pole.
- Position the C-clamp on the edge of your desk.
- Tighten the clamp screws until the base is securely fastened to the desk. Ensure the desk thickness is within 0.4" to 2.4".
Grommet Base Installation:
- If your desk has a grommet hole, disassemble the C-clamp and attach the grommet base components to the desk pole.
- Insert the pole through the grommet hole.
- Secure the base from underneath the desk using the provided hardware. Ensure the desk thickness is up to 2.25".
5.2 Attaching Monitor Arms and Monitors
- Slide the monitor arms onto the desk pole at your desired heights.
- Attach the VESA plates to the back of your monitors using the appropriate screws from the hardware kit.
- Carefully slide the monitors (with VESA plates attached) onto the monitor arms. Ensure they click into place securely.
- Tighten any security screws on the VESA plate connection to prevent accidental detachment.

Image: The Ergounion E66 Dual Monitor Mount with two monitors attached, demonstrating a typical setup.
6. Operating and Adjustments
The Ergounion E66 monitor mount offers extensive adjustability for optimal ergonomic positioning.
6.1 Monitor Movement and Range
Each arm allows for a wide range of motion:
- Swivel: 360 degrees at the pole and arm joints.
- Tilt: +90 degrees to -25 degrees.
- Rotation: 360 degrees (portrait to landscape).
- Extension: Up to 29 inches (max) from the pole.
- Height Adjustment: Up to 18 inches along the pole.

Image: A diagram illustrating the swivel, tilt, and rotation capabilities of the monitor arms, along with maximum weight and VESA compatibility.

Image: A diagram detailing the maximum rise (18 inches) and extension (29 inches) of the monitor arm from the desk pole.
6.2 Spring Tension Adjustment
The monitor arms feature an articulating spring for smooth movement. Adjust the tension to match your monitor's weight for optimal stability and ease of movement.

Image: A close-up view of the articulating spring mechanism, indicating how to turn clockwise for heavier monitors (+) and counter-clockwise for lighter monitors (-).
- If the monitor does not stay up when raised, turn the adjustment screw clockwise (+) to increase tension.
- If the monitor does not stay down when lowered, turn the adjustment screw counter-clockwise (-) to reduce tension.

Image: Illustration showing how to adjust the tension screw to prevent a monitor from dropping.

Image: Illustration showing how to adjust the tension screw to prevent a monitor from rising too high.
6.3 Cable Management
Utilize the integrated cable management clips on the monitor arms to route and conceal your cables for a tidy workspace.

Image: A close-up of the monitor arm showing cables neatly routed through the integrated cable management channels.
7. Maintenance
- Regularly check all connections and screws to ensure they remain tight.
- Clean the mount with a soft, damp cloth. Avoid abrasive cleaners.
- Do not lubricate the spring mechanism unless specifically instructed by customer support.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Monitor sags or drops | Spring tension is too low for monitor weight. | Increase spring tension by turning the adjustment screw clockwise (+). |
| Monitor floats up or is difficult to push down | Spring tension is too high for monitor weight. | Decrease spring tension by turning the adjustment screw counter-clockwise (-). |
| Mount is unstable on desk | C-clamp or grommet base not tightened sufficiently. | Ensure all base screws are securely tightened. Check desk thickness compatibility. |
| Monitor does not attach to arm | Incorrect VESA plate attachment or incompatible VESA pattern. | Verify monitor VESA pattern (75x75mm or 100x100mm). Ensure VESA plate is correctly aligned and secured to the monitor and arm. |
9. Warranty and Support
Ergounion products are designed for durability and performance. For specific warranty details, please refer to the product packaging or contact Ergounion customer support directly.
If you encounter any issues or have questions regarding your Ergounion E66 Dual Monitor Mount, please visit the official Ergounion store or contact their customer service for assistance.
Official Ergounion Store: Visit Store