1746A2D DS3500 Express IBM Array Controller DS3512 SAS Dual Controller 12 Bay

IBM Array Controller 1746A2D DS3500 Express DS3512 SAS Dual Controller 12-Bay RAID controller Single or dual active, hot-swappable controllers Cache 1 gigabyte (GB) cache per controller with 2 GB upgrade (battery-backed) Host interface Two 6 Gbps SAS host ports per controller standard with the option to add a daughter card with additional connectivityFour options Four or eight 6 Gbps SAS ports Eight 8 Gbps Fibre Channel ports and four 6 Gbps SAS ports Eight 1 Gbps iSCSI ports