Port number usb device on virtual machine

I am using RFlink to switch KAKU devices.
Now I do a reinstall on a virtual machine on Synology NAS (before this I used Docker).

Anyone can tell how to retrieve the port number of my usb-device ?
The name of the usb-device in the VM is now Arduino SA Mega 2560 R3 (CDC ACM)

For those who are looking for the same, there is a lot of information under settings->system->hardware …nice :slight_smile: did not know