| RAID-on-Chip Controller | ARM_based storage I/O processor(R) 1.066 GHz | 
                  
                    | Cache Memory | 512 MB on-board DDR3-1066 SDRAM with ECC protection | 
                  
                    | Host Bus Interface | 4-Lane PCI Express(R) 2.0 | 
                  
                    | Ports | 8 x internal | 
                  
                    | Drive Connectors | 2 x SFF-8087 | 
                  
                    | Data Transfer Rate | Up to 6Gb/s per port | 
                  
                    | Drive Support | Up to 8 x SATA HDDs/SSD | 
                  
                    | Physical Dimensions | Low Profile 168(L) x 64.4(H) mm | 
                  
                    | Power Dissipation | Typical 11W | 
                  
                    | Operating Temperature | 0 °C to 60 °C with 200 LFM airflow | 
                  
                    | Operating Humidity | 10% to 85%, non-condensing | 
                  
                    | BBM Support | ARC-6120BA-T121-12G | 
                  
                    | RAID Levels | RAID level 0, 1, 10(1E), 3, 5, 6, 30, 50, 60 and Single Disk | 
                  
                    | RAID Features | Multiple RAID selection | 
                  
                    |  | Configurable stripe size up to 1MB | 
                  
                    |  | Support HDD firmware update | 
                  
                    |  | Online array roaming | 
                  
                    |  | Online RAID level/stripe size migration | 
                  
                    |  | Online capacity expansion and RAID level migration simultaneously | 
                  
                    |  | Online volume set growth | 
                  
                    |  | SED (self-encrypting drives) function support | 
                  
                    |  | Multiple pairs SSD/HDD disk clone function | 
                  
                    |  | SSD automatic monitor clone (AMC) support | 
                  
                    |  | Instant availability and background initialization | 
                  
                    |  | Support global and dedicated hot spare | 
                  
                    |  | Automatic drive insertion/removal detection and rebuilding | 
                  
                    |  | Support for native 4K and 512 byte sector SAS and SATA devices | 
                  
                    |  | Support intelligent power management to save energy and extend service life | 
                  
                    |  | Support NTP protocol synchronize RAID controller clock over the on board Ethernet port |