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Ergotron

LX Dual Side-by-Side Arm

The Ergotron LX Dual Side-by-Side Arm offers sturdy, smooth dual-monitor mounting with easy setup but has limited vertical range and struggles with very light monitors.

Summed up from 6 published reviews

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Ergotron LX Dual Side-by-Side Arm

What reviewers like

  • Sturdy, durable metal construction feels premium 1234
  • Easy installation, often under 10 minutes 126
  • Smooth, wide motion with independent monitor adjustment 1245
  • Clean cable management saves desk space 134
  • Supports dual 27-inch monitors side-by-side 1456

What they don't

  • Limited vertical height and horizontal spacing 1246
  • Lightweight monitors may drift or resist adjustment 1256
  • No vertical stacking for larger displays 45
  • Requires deep desk space; may hit walls 16

Best for

Users wanting durable, adjustable side-by-side dual monitors up to 27 inches.

Skip it if

Need vertical stacking, have ultra-light monitors, or limited desk depth.

Where it fits

screens
Two
screen size
Up to 27″
mount
Desk clampGrommet
arm type
Gas spring

Specs

Screens
2
Largest screen
27″
Arm type
Gas spring
Mount
Desk clamp, Grommet
Laptop tray
No
Holds per screen
9.1 kg (20.1 lb)

Also worth a look

Questions

Is the Ergotron LX Dual Side-by-Side Arm worth it?

The Ergotron LX Dual Side-by-Side Arm offers sturdy, smooth dual-monitor mounting with easy setup but has limited vertical range and struggles with very light monitors.

What do reviewers like about the Ergotron LX Dual Side-by-Side Arm?

Sturdy, durable metal construction feels premium. Easy installation, often under 10 minutes. Smooth, wide motion with independent monitor adjustment. Clean cable management saves desk space. Supports dual 27-inch monitors side-by-side.

What are the downsides of the Ergotron LX Dual Side-by-Side Arm?

Limited vertical height and horizontal spacing. Lightweight monitors may drift or resist adjustment. No vertical stacking for larger displays. Requires deep desk space; may hit walls.

Who should buy the Ergotron LX Dual Side-by-Side Arm?

Users wanting durable, adjustable side-by-side dual monitors up to 27 inches. Skip it if need vertical stacking, have ultra-light monitors, or limited desk depth.

Sources

We don't test products ourselves. This page sums up 6 published reviews, read on October 23, 2026; each point above links to the reviews that make it.

  1. staples.com Customer Reviews for Ergotron LX Dual Side-by-Side Monitor Arm, Up to 27" Monitor, Black (45-245-026)
  2. bestbuy.com Customer Ratings & Reviews
  3. lowtechhitech.com Ergotron LX Dual Desk Mount Arm Review - LowTechHiTech.com - Technology Talk About Macintosh, Apple, Video and Photography - Charleston, Sou
  4. ergodirect.com Ergotron 45-245-026 LX Dual Side-by-Side Arm
  5. yourtechreviews.com LX Dual Side by Side Arm Review 2026 | TechReviews
  6. cdw.com Ergotron LX Dual Side-by-Side Arm mounting kit - Constant Force Technology - for 2 LCD displays - polished aluminum - 45-245-026 - Monitor M