8 bay nas memory capacity 16 tb max hard drives 8 hard drive form factors 25 35 inch hard drive types hdd ssd hard drive mountings screwed fixed position removable drive hard drive location vertical internal interface sata iii target audience small and medium sized businesses smbs internal file system ext4 external file systems ext3 ext4 ntfs hfs fat raid levels 0 1 5 6 10 networking gigabit 101001000 10 gigabit connections 2x sfp 2x r