External Connectors: 2 x mini-SAS SFF-8088 Transfer Rate: Up to 6Gb/s RAID: RAID 0/1/5/6/10/50/60 Cache Memory: 512MB DDRII cache (800MHz) Features: Ideal for external subsystems using large numbers of SATA or SAS drives SafeStore Encryption Services for more secure data protection Low-profile MD2 form factor for space-limited 1U and 2U environments Parts: 3 years limited