Screens
Up to 34 in (listed)
Capacity
7-25 lb (listed)
Height range
13 in of lift (listed)
Warranty
10 years (listed)
Pros
- Listed 25 lb capacity covers heavy color-accurate monitors
- Constant Force motion: reposition with one hand, no knobs
- Holds position for years without sag or drift
- 10-year listed warranty, the longest in this guide
Cons
- Several times the price of the budget picks
- Overkill for light 24 in panels
- Single arm; dual setups need a second LX or the HUANUO
The Ergotron LX is the arm you buy when the monitor on it matters. Ergotron builds the mounting hardware hospitals and trading floors spec, and the LX is their desk classic: a polished aluminum arm listed for screens up to 34 inches and up to 25 pounds, with roughly 13 inches of height adjustment.
That capacity number is the whole story for artists. If you followed our color-accurate monitor guide, you likely own or want a 27 to 32 inch panel, and the bigger factory-calibrated displays are heavy. Hang one on an arm rated at its limit and you get sag, drift, and a screen that nods every time you touch the desk. The LX carries that class of monitor with margin, and its Constant Force joints mean you move the screen with one hand and it stays exactly where you leave it.
Our Pick
The benchmark every other arm gets compared to. Listed for flat and curved monitors up to 34 inches and up to 25 pounds, with Ergotron's Constant Force motion and a 10-year warranty. It is the one arm here rated to float the heavy color-accurate monitors serious editing desks actually run.
Buy this if your monitor is the expensive part of your desk. A 27 to 32 inch color-accurate display is heavier than most budget arms are rated for; the LX's listed 25 pound capacity covers it with margin, holds position without sag, and moves with one hand when you want to swing the screen around to show a client a proof.
What we don't like
It costs three to six times what the budget arms below cost, and if your monitor is a light 24 inch panel you are paying for capacity you do not need. Ergotron sells polish and headroom; on a small screen a ~$30 arm does the visible part of the job.






