8 bay nas thunderbolt 2 speeds of up to 1330mbs memory capacity 12 tb number of installed hard drives 8 max hard drives 8 memory capacity per hard drive 15 tb hard drive types hdd ssd internal interface sata iii target audiences small and medium sized businesses smbs business internal file system ext4 external file system fat raid levels 0 1 5 6 10 networking thunderbolt 2 connections 2x thunderbolt 2 cases rack mount 1u optical disc drives