2 x 2080tis working - Trying to get a third working.
Struggling to get more than 2 cards working on my Mac Mini (2018) with Bootcamp.
It seems 4 x TB3 canonly handle 2 ports 1 and 2 cant have 2 cards and ports 3 and can't have 2 cards.
Is there something I can do?
I assumed the Mac Mini with 4 x TB3 ports could in theory connect to 4 x eGPUs.
@dan_brookes, multiple Thunderbolt eGPUs can be daisy chained to the same port (up to 6 per chain). Multiple GPUs can be connected to a single Thunderbolt enclosure. So there's no limit except the OS and the number of PCIe buses. For macOS, four is a limit (but I forget what is limited in that case - i.e. what adding a fifth gives or doesn't give you).
Thanks for the tip!
How would I physically connect them to Daisy chain?
Sorry for Noob questions!
You would use a Thunderbolt 3 PCIe expansion box that has two Thunderbolt 3 ports instead of an eGPU box, make the GPU fit by using risers or cutting the box open or using a smaller GPU, and add a power supply.
Or use Blackmagic eGPUs.
The list of Thunderbolt 3 solutions in the Buyer Guide includes some that are not certified for eGPU use which have two Thunderbolt 3 ports.