Ergotron LX Quad Monitor Arm for 4 Monitors up to 40in - Stable Quad

In this review of the Ergotron LX Quad Monitor Arm, the bottom line is simple: if you need a rugged, adjustable solution to mount four large displays and reclaim desk space, this is one of the most capable options available. The quad setup supports screens up to 40in and 7 to 11 lbs each, and the kit includes everything required for clamp or grommet installation. For teams that need stacked or tightly packed multi-monitor layouts, the LX Quad delivers stability, broad VESA compatibility, and generous height and tilt adjustment.

Key Features

• Four-screen compatibility: Supports four monitors up to 40in and 7 to 11 lbs each so you can build a dense multi-display workstation without oversizing each arm.
• Complete mounting kit: Ships with LX arms, extensions, a 23in tall pole, two-piece desk clamp, grommet mount plate and all hardware to fit desktop edges 0.63 to 2.6 in thick or a through-desk hole.
• VESA fit: Works with common 75x75mm and 100x100mm VESA patterns so existing monitors mount directly without adapters.
• Wide articulation: Offers 13 in of lift with up to 31.7 in rise from the desktop plus 360 degree rotation and 75 degree tilt for flexible viewing and collaboration.
• Cable management and workspace gain: Thoughtful routing frees surface area and keeps the layout tidy when arranging multiple displays.
• Durability and support: Built to Ergotron standards with extensive testing and a 10-year warranty, giving confidence in long-term stability.

Who It's For

The Ergotron LX Quad is aimed at professionals and teams who need a compact, reliable multi-monitor arrangement: traders, call center operators, software developers, medical staff and serious gamers who prefer stacked or tightly grouped displays. Its ability to handle larger 40in screens and heavy VESA-mounted panels makes it suitable where high pixel real estate and stable positioning are essential.

It is less appropriate for casual single-monitor users, ultralight portable setups, or desks that cannot accommodate a 23in pole or require unconventional non-VESA mounts. Buyers with very thin or nonstandard desk materials should confirm compatibility with the clamp range or use the grommet option.

Pros & Cons

Pros

• Robust support for four large monitors gives a professional-grade multi-display solution.
• Comes with all necessary hardware for clamp or grommet mounting, reducing additional purchases.
• Excellent adjustability with lift, rotation and tilt to customize ergonomics and collaboration.
• Durable design backed by a 10-year warranty offers long-term peace of mind.

Cons

• Requires a substantial desk footprint and a 23in pole, which may not suit very shallow desks or minimalist setups.
• Not suitable for monitors that do not use standard 75x75mm or 100x100mm VESA patterns without adapters.

Specifications

Brand	Ergotron
Mount type	Desk clamp or grommet mount
Supported screens	Up to 4 monitors, up to 40in each
Weight capacity	7 to 11 lbs per monitor
VESA compatibility	75x75mm and 100x100mm
Pole height	23 in tall pole
Warranty	10-year warranty

Our Verdict

The Ergotron LX Quad Monitor Arm is a strong choice for anyone building a four-monitor workstation that demands stability, adjustability and neat cable management. It includes everything needed for installation and supports large 40in displays with standard VESA mounts, making it good value for teams and power users who need reliable multi-screen ergonomics over the long term.

Frequently Asked Questions

Will this mount fit my desk?
The kit includes a heavy-duty two-piece clamp for edges 0.63 to 2.6 in thick and a grommet plate for through-desk installation, so most standard desks are supported.

Can I use non-VESA monitors?
Monitors must use 75x75mm or 100x100mm VESA patterns or require third-party adapters to mount to the arms.

How much adjustment is available?
The system provides 13 in of lift, a 31.7 in rise from the desktop, 360 degree rotation and up to 75 degree tilt for flexible positioning.