Well, now I'm very confused. I've checked with PreSonus last week and they said:
"Hi Jacques
Thank you for contacting PreSonus Support.
Unfortunately the FireBox is end of service and we no longer support it. We can not verify if it will work with the adaptor.
We are very sorry but your product has reached the End of Service and we can longer advise on its use with modern computers.
This means that your product is no longer supported for current computers and current operating systems.
This also means that there are no longer any manufactured parts to repair these products.
List of current EOS products is found here:
http://www.presonus.com/support/repairs
There will be no active support provided for any End of Service product and this ticket will submit as Solved."
And I asked your colleague at Apple and he said january 16, 2023:
"Bonjour,JacquesRabbit, Mais Oui, you’d need a Thunderbolt to FireWire adapter( see link) Apple Thunderbolt to FireWire Adapter - Apple (CA)
then a Thunderbolt 3 to Thunderbolt adapter, like this ( see link) Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter - Apple (CA)
john b"
What do I do ?
Thx
Jacques