Areca 24/4 Internal/External Port Pcie 3.0 12 Gb/s SAS/SATA Raid Controller 2Gb Cache - Manual (Page 234)

APPENDIX
234
Appendix F
Self-Encrypting Disk (SED) Encryption
The “Security Function” on the firmware supports Self-Encrypting Disks
(SED) for protection of data against loss or theft of SEDs. Protection
is achieved by the use of encryption technology on the drives. The
McRAID storage management allows SED keys to be created and man-
aged as well as create/delete RAID sets.
Step 1. Create SED RAID Set