2 bay nas memory capacity 4 tb number of installed hard drives 2 max hard drives 2 memory capacity per hard drive 2 tb 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 single disk jbod 0 1 networking gigabit 101001000 connections 2x usb 20 2x usb 30 1x hdmi