I connected up to 10 digital devices to the MoodleBox 3.13.0.-dev-1. The last one had some problems to connect. So I think that this could be the current limit.
In order to make massive demands on the Moodlebox, I made numerous updates. The iOS devices have loaded several apps via the MoodleBox and its ethernet cable. The other devices are Linux notebooks, for whose Puavo operating system an update with 1.5 GB was pending. So within a short period of time, 7 GB were distributed via the MoodleBox.
The Android tablet is also connected to the MoodleBox and has not registered any interruptions over the entire period of 3 hours. It's a great improvement already, but hopefully it gets even better as development continues.