DataEdge 1104NST
Size: 4 disk drives
Disk Controller: SATA II

DataEdge 2108NST
Size: 8 disk drives
Disk Controller: SATA II HotSwap

DataEdge 3112NST
Size: 12 disk drives
Disk Controller: SATA II HotSwap

DataEdge 4116NST
Size: 16 disk drives
Disk Controller: SATA II HotSwap

DataEdge 5124NST
Size: 24 disk drives
Disk Controller: SATA II HotSwap