4 bay nas nas enclosure max hard drives 4 hard drive form factors 25 35 inch hard drive types hdd ssd 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 0 1 5 6 10 jbod single disk networking gigabit 101001000 connections 2x usb 20 1x hdmi 2x usb 30 2x rj 45 case tower processors intel celeron dual core clock spe