71311 iSCSI to SAS/SATA 2U/12-bay RAID subsystem, Redundant controllers, 8 GbE ports, SAS/SATA, SAS Exp., ASIC400, 512MB per controller, BBU, IFT logo, LCD support, US/TW power cord. Rail kit not included. ESS12ER113245-0030$5,733.33 iSCSI to SAS/SATA 3U/16-bay RAID subsystem, single controller, 4xGbE ports, SAS/SATA, SAS Exp., ASIC400, 512MB. Rail kit not included. ESS16EG1130M5-0030$4,266.67 iSCSI to SAS/SATA 3U/16-bay Redundant RAID subsystem, Dual Controller, 8xGbE ports, SAS/SATA, SAS Exp., ASIC400, BBU, 512MB per controller. Rail kit not included. ESS16ER1130M5-0030$7,466.67 iSCSI-to-SAS/SATA 3U/16-bay Generic RAID, 2 x Optical 10GbE ports, SAS Exp, ASIC667, 2GB ESS16EG1240MB-0A30$5,133.33 iSCSI-to-SAS/SATA 3U/16-bay Redundant RAID, 4 x Optical 10GbE ports, SAS Exp, ASIC667, 4GB, BBU ESS16ER1240MB-0A30$8,666.67