When I try to boot from the Thunderbolt 4 attached Envoy Pro EX SSD with Big Sur 11.1 on it, the system crashes and some Chinese characters appear on the screen. Unfortunately I cannot follow this direction as the Envoy Pro EX SSD has a cable permanently attached to it, so it cannot be used withe Apple TB2 to TB3 adapter cable. So indeed Big Sur 11.1 has acknowledged that a second SSD is attached to the Dock. When I plug a second Envoy Pro EX SSD with Mojave on it into the middle Thunderbolt 4 port, the following message appears in the upper right hand corner of my screen:Ĭonnect accessory to a Thunderbolt port on this Mac." Well, I'll try and find out if that's the case, provided Big Sur boots up with the OWC Dock attached.Īttached to the Thunderbolt 4 port, adjacent to the Gigabit Ethernet port, is an Envoy Pro EX SSD with Big Sur 11.1 on it. I should get one live Thunderbolt port that I can boot from and several USB-A ports that I cannot boot from. So that would imply that my old TB2 computer should behave under Big Sur exactly as it does under Mojave. Yep, you’ve got it – with Big Sur, your Thunderbolt 3 Mac is now (essentially) a “Thunderbolt 4” computer! Consider it an early Christmas gift from Apple." With this week’s release of macOS 11.1, all Thunderbolt 3 Macs now support hubbing. However, we have some big news to report… We can verify that pre-Thunderbolt 3 Mac models do not support hubbing, and additional ports on these Macs will operate only for USB 3 and up to 10Gb/s (USB 3.1g2 aka USB 3.2). One of the most exciting advances in Thunderbolt technology is that the 4th generation allows for “hubbing” – connecting up to four Thunderbolt devices through one port. That TB2 Macs don't get the Hubbing feature under Big Sur.
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