Hello
I don't know about the 57", but it is very stable with the 49".
Look on the Ergotron website to find the right one: https://www.ergotron.com/fr-fr...
Have a nice day

Hello everyone,

I have had this monitor arm and a Neo G9 57" since November 2023. Fortunately, it does not hang down in my case, but holds straight/normally. I don't use the tilt function though. However, the height adjustment works well (enough, i.e. +/- 5 cm up/down, enough for me); however, I rarely move the monitor. I have the arm mainly to have (more) space under the monitor. However, if it does hang downwards in your case, you can still block it with a few screws* ... until Ergotron brings a new attachment onto the market. But that could still take a while. *https://www.youtube.com/watch at approx. 4:30.

I would like to know the same thing, but elsewhere on the internet it suggests that it can just about hold it, but the tilt function will not work (or it will sag downwards). Ergotron are working on a heavier duty backplate to combat this, but no official date as yet.

I have the same question, please give me feedback as soon as you know more.
Theoretically, the 57" is still in the possible weight class, theoretically...