12 bay nas memory capacity 48 tb number of installed hard drives 12 max hard drives 12 memory capacity per hard drive 4 tb hard drive form factor 35 inch hard drive type hdd hard drive location horizontal internal interface sata iii target audience small and medium sized businesses smbs raid levels 0 1 5 6 10 50 networking thunderbolt 3 connections 2x thunderbolt 3 1x usb 31 case tower hdd management hot swap supported operating systems mac