Apologies, I did not use the same benchmark for all of these tests.Good question. What speeds do you get that way? If you have it in a thunderbolt port it likely is running at pretty good speeds
This is the speed of the Kingston Fury Renegade 1TB SSD installed into the Mac Pro 6,1 internal NVMe slot:
I have a couple different enclosures now. I got this MAIWO dual bay enclosure which has a USB 3.2 Gen 2x2 interface because it had a separate power supply and 20 Gbps speed. I tried this with the Apple TB3 (USB-C) to TB2 adapter fantasizing that I would get both PCIe lanes of the Gen 2x2 interface to connect to the two PCIe lanes of the TB2 interface. Even though I can power the device separately, the Apple adapter will not allow the drive to connect to the TB2 host port on the Mac Pro 6,1 at all. So, I have to use a USB 3.0 port on the Mac Pro 6,1 for this enclosure.
The speed of the Samsung 980 PRO in the MAIWO enclosure connected to USB 3.0 on a Mac Pro 6,1:
For comparison, the speed of the Samsung 980 PRO in the MAIWO enclosure on an M2 Max which enumerates the drive as USB 3.2 Gen 2 with a speed of 10 Gbps:
I am also trying out this INDMEM TB4/USB4 enclosure. For me this one was about 33% less expensive than the ACASIS and about 1/2 the price of an ORICO TB4 enclosure. Speed of the Samsung 980 PRO in the INDMEM enclosure connected to a USB 3.0 port of the Mac Pro 6,1 is:
For comparison, speed of the Samsung 980 PRO in the INDMEM enclosure connected to a TB4 port of the MBP M2 Max is: