Additionally, I am looking for something that I can setup and forget. I am helping a friend of mine, he owns a retail store, setup a backup system. They do daily backups to usb drives to go offsite. I just got them a nas box, and I want to setup something that would backup all 3 of their computers main files into the nas. Just for extra layer of protection. So I am looking for something that they would not need to touch, totally automatic.