Question about Icy Box IB-MS314-T

I personally assume a payload per arm.

Long version:
I use the mount with two AOC CQ32G3SU/BK monitors. These have a specified weight of 8.15 kg (with stand).
As I have not weighed them separately without the stand, I still estimate that they weigh 6-7 kg.

So there are easily 12-14 kg on the holder and it holds. The mechanism also works and the positions are retained (no tilting or pulling down). I have also been using the bracket since April 2022.

The manufacturer's website states "screens weighing up to 8 kg", which I also interpret as "per arm".