Areca ARC-8050T3U 6-Bay Thunder3 Desktop RAID Storage Array - Manual (Page 137)

137
APPENDIX
Exporting the SED key puts it in a file (SEDKEY256.BIN) that you
can then transfer to another computer or put in a safe place.
The key file (SEDKEY256.BIN) is stored on the specific location.
Without the proper authentication key (SED key), even if the SED
RAID set is removed and placed in another new RAID controller,
the data remains inaccessible.