TESTED: 16TB OWC Accelsior 4M2 PCIe SSD
The 16TB model (June 2020) of the OWC Accelsior 4M2 PCIe SSD delivers similar performance to the 8TB model as tested in the 2019 Mac Pro.
This runs rings around a hard drive at about 25 times faster than a hard drive across the entire 16TB capacity.
This is so fast than almost nothing can make use of the full bandwidth except specialized and optimized software like diglloydTools IntegrityChecker.
Technology like this is so wonderful: fast beyond measure and totally silent. See Putting the 16TB OWC Accelsior 4M2 PCIe SSD to Use as Main Storage.

