I have been using this Intel SS4200-E since 2010. It was not purchased with a DOM so I have been booting it from a USB stick that has NAS4Free 9.1 installed. Since it is headless I installed a serial port connector so that a command line interface can be used to access the unit from a laptop PC. It comes with four 1TB hard drives. The memory was upgraded to 2 GB and a new power supply installed in 2021. It is sold as is with no returns but is working as can be seen in the attached screen shot.