High-Speed Performance: The D2-320 supports USB 3.2 Gen2 (10Gbps), delivering speeds up to 521MB/s (HDD RAID 0) or 1075MB/s (SSD RAID 0). Flexible RAID Options: Hardware RAID supports RAID 0/1, JBOD & SINGLE. RAID 1 enables automatic data recovery when replacing failed drives. Massive 44TB Capacity: Holds two 3.5'/2.5' SATA HDDs/SSDs (22TB each) for up to 44TB storage. Smart Cooling System: Temperature-controlled fan adjusts speed to maintain optimal drive temperatures quietly. Tool-Free Installation: Features tool-free trays with Push-Lock mechanism for secure, easy drive swaps.