4 bay nas memory capacity 16 tb number of installed hard drives 4 max hard drives 4 memory capacity per hard drive 4 tb hard drive form factors 25 35 inch hard drive types hdd ssd hard drive mounting removable drive hard drive access front hard drive location horizontal target audience small and medium sized businesses smbs raid levels 0 1 5 6 10 jbod networking gigabit 101001000 connections 4x rj 45 2x esata 1x usb 20 2x usb 30 cases 1