In the worst case, an expensive TB3 SSD with a regular write speed of 2.2 GB/s could only write at 400 MB/s when connected via a hub and contending with faster SSDs.
Thunderbolt
From choosing cables and hubs to connecting displays, fast SSDs and other devices. Everything you wanted to know about Thunderbolt.
What happens to read and write speeds of three SSDs connected to the same hub, and working at the same time? Can they exceed the maximum of 3 GB/s?
If you have more than a couple of Thunderbolt peripherals, should you be thinking of getting a Thunderbolt 4 hub?
What happens when you connect two fast SSDs to your Mac and they both write or read at the same time? How do they perform when connected through a hub? And how does it pay to be a winner?
You pay hundreds of $$ for a high-speed Thunderbolt SSD, then connect it to a hub. Will it still deliver the same performance? Maybe not when writing.
Do fast Thunderbolt SSDs slow down when connected via a Thunderbolt hub? How fast are they when reading at the same time? Does connecting a display affect them?
Writing to the Data volume in a VM is dismally slow. Is using shared storage any quicker? What happens when you copy a VM to an external SSD, or to another Mac?
Intended to counter hardware exploits, such as the checkm8 exploit of T2 chips and Thunderspy for Thunderbolt 3, this should prove valuable protection.
Summary of AirDrop, network file sharing, target disk mode, and sneakernet, explaining how to use each and what they’re best at.
The Eclectic Light Company 