16 bay nas nas enclosure max hard drives 16 hard drive form factors 25 35 inch hard drive type hdd hard drive mounting removable drive hard drive access front hard drive location horizontal internal interfaces sas 20 sata iii target audience business internal file system ext4 external file systems ext3 ext4 ntfs fat32 hfs raid levels 0 1 5 6 10 jbod single disk networking gigabit 101001000 10 gigabit connections 4x rj 45 4x usb 30 4x