12 bay nas nas enclosure max hard drives 12 memory capacity per hard drive 4 tb hard drive form factors 25 35 inch hard drive type ssd hard drive access front hard drive location horizontal internal interface sata iii target audience small and medium sized businesses smbs internal file system ext4 external file systems ext3 ext4 ntfs fat32 hfs raid levels 0 1 5 6 10 single disk jbod networking gigabit 101001000 connections 4x rj 45 4x us