RT55SNHX RAID Tower V (black color) with 1 5X1 HPM-XA Enclosure Version installed. Install up to five 3.5" SATA hard drives of any capacity (drives not included). Drives are added or removed like tape cartridge from each drive bay with no special tool required. Connect to system via eSATA port (connecting cables included). Drives can be configured as RAID0, RAID1, RAID3, RAID5, RAID10, JBOD, Clone Mode using built-in hardware RAID. For more information, click here