2 bay nas memory capacity 4 tb max hard drives 2 hard drive form factors 25 35 inch hard drive types hdd ssd hard drive access front internal interfaces sata ii sata iii target audience home users internal file system ext4 external file systems ext3 ext4 ntfs hfs fat raid levels jbod 0 1 synology hybrid raid networking gigabit 101001000 connections 1x usb 20 1x usb 30 1x rj 45 case tower clock speed 1 500 mhz ram 1 gb ram 1 024 m