Does anyone know if the storage expansion cards support any self encryption features (SED, OPAL)?
Do they have a PSID number printed on them?
One way to know is to use the sedutil. If you are running the testing release of Debian (trixie) or Ubuntu (24.10), you could do the following:
sudo apt install sedutill
sudo sedutil-cli --scan
# Check if the second column is something other than "No".
sudo apt purge sedutil