4 bay nas max hard drives 4 hard drive form factors 25 35 inch hard drive types hdd ssd hard drive access front hard drive location vertical internal interface sata iii target audiences home users small office home office soho internal file system ext4 external file systems ext3 ext4 ntfs fat32 hfs raid levels single disk jbod 0 1 5 5hot spare 6 10 networking gigabit 101001000 connections 1x hdmi 2x rj 45 3x usb 30 case tower pro