Operating System Requirements: macOS 10.12-10.13 Description: This software provides support for the Sonnet Thunderbolt Pro P2 Card Reader with computers running macOS. This driver is compatible with only macOS 10.12-10.13.
IMPORTANT NOTES: You need to remove the P2 card from the reader before sleeping the computer.
With the 2019 Mac Pro, you must connect to the top Thunderbolt port. The rear Thunderbolt ports of the 2019 Mac Pro are not compatible with the P2 reader.
If you have already installed the driver and it is not loading:
1) Restart (forces Mac OS to scan for unloaded drivers).
2) Go to System Preferences...Security & Privacy panel...General tab. You will see a message, "System software from developer "Panasonic Corporation" was blocked from loading." Click Allow.
3) Restart.