Overview
The Ergotron LX Pro Dual Side-by-Side Monitor Arm, part number 45-686-290, is a white desk-mounted monitor arm designed to position two displays side by side. Each monitor can be adjusted independently for height, tilt, pan, and rotation, while the dual-arm configuration helps free usable space on the desktop.
Monitor Support and Adjustment
The arm supports two monitors up to 27 inches, with a load range of 4 to 20 lb (1.8 to 9 kg) per monitor and a total capacity of 40 lb (18.1 kg). Each display provides 13 inches (33 cm) of lift, 85 degrees of tilt, 180 degrees of monitor pan, and 360 degrees of monitor rotation.
Mounting and Compatibility
The standard configuration uses a two-piece desk clamp and a 5.3-inch (13.5 cm) pole. The monitor pivots use the MIS-D VESA pattern supporting 75 x 75 mm and 100 x 100 mm mounting patterns. The arm provides up to 25 inches (64 cm) of extension.
Key Features
- Supports two monitors in a side-by-side configuration
- Supports displays up to 27 inches and 20 lb (9 kg) per monitor
- 13 inches (33 cm) of lift adjustment
- 85-degree monitor tilt with 360-degree rotation
- Built-in rotation stop and integrated cable-management design
Applications
The dual-arm configuration is suited to desk-based workstations requiring two independently adjustable displays, including office, technical, and multi-screen productivity environments.
DC Supplies Product Note
For a two-monitor installation, check the weight of each display individually as well as the combined load. The arm accepts 1.8 to 9 kg per monitor, with a maximum combined capacity of 18.1 kg.
Specifications
| Brand | Ergotron |
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| Part Number / MPN | 45-686-290 |
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| Product Type | Dual monitor arm |
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| Series | LX Pro |
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| Configuration | Dual Side-by-Side |
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| Color | White |
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| Typical Display Size | Up to 27 inches |
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| Individual Monitor Capacity | 4–20 lb (1.8–9 kg) |
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| Total Weight Capacity | 40 lb (18.1 kg) |
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| Lift | 13 in (33 cm) |
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| Tilt | 85° (+70° / -15°) |
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| Monitor Pan | 180° |
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| Base Arm Pan | 360° |
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| Monitor Rotation | 360° |
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| Extension | Up to 25 in (64 cm) |
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| VESA Compatibility | MIS-D, 100/75, C; 100 x 100 mm and 75 x 75 mm |
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| Mounting | Two-piece desk clamp |
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| Pole Height | 5.3 in (13.5 cm) |
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| Product Weight | 6.3 kg |
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| Warranty | 10 years |
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| UPC | 0698833091694 |
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Frequently Asked Questions
How many monitors does the Ergotron 45-686-290 support?
The LX Pro Dual Side-by-Side configuration supports two monitors.
What is the maximum monitor weight?
Each monitor can weigh up to 20 lb (9 kg), subject to the 40 lb (18.1 kg) total capacity of the two-monitor configuration.
What VESA mounting patterns are supported?
The monitor pivots support 75 x 75 mm and 100 x 100 mm VESA mounting patterns.
Can the monitors be rotated?
Yes. Each monitor provides 360 degrees of rotation, along with 180 degrees of monitor pan and 85 degrees of tilt.
What mounting hardware is included?
The documented standard configuration includes two arms, two extensions, two monitor pivots, a two-piece desk clamp, a standard base, a 5.3-inch pole, and attachment hardware.
