16 (+4)-Bay TurboNAS, SAS 12G, SAS/SATA 6G, Xeon E5-2620 v32.4GHz, 64GB RAM, 4-LAN, 10G-ready, iSCSI, RAID 0, 1, 5, 6, 10, 5+spare, 6+spare, 10+spare, global hot spare, max 32 GB RAM, max8-LAN, PCIe expansion slot x4, redundant power supply, Without RailKit