G-Tech G-RAID 8TB (2x4GB, RAID 0). Working and comes with power supply, USB2 and firewire 800 cables. Has USB2, Firewire 800 and eSATA connectors. The USB and firewire connections work fine. The eSATA connector hasn't been tested, but you can return it if you need and it doesn't work. The unit has 2x 4TB HDD configured in a RAID 0 configuration (striped). As I understand it, you need some software to change the configuration from RAID 0 to RAID 1 or JBOD, but I don't have that software and couldn't find it online. Without the software you will only be able to use the drive as is so please don't buy it if you want a different configuration.