Thunderbolt 3 Twelve SATA 3 Hardware Raid; JBoD trayless Quiet Tower Array roaming - Move RAID to different system without rebuild. Supports RAID volumes schedule scrubbing, to ensure data integrity Supports Multiple RAID Array volumes. Capable of growing storage capacity when need Online capacity expansion & RAID level migration simultaneously. Automatic drive insertion/removal detection and rebuilding. Supports S.M.A.R.T, NCQ and OOB staggered spin-up capable drives. SMTP support for email notification. SNMP agent support for remote SNMP Manager