The Sun StorEdge 3120 SCSI Array is a modular storage disk array. The 1RU form factor fits that easily fits into small spaces. The four disk drive capacity delivers more than a terabyte per array. If you are looking to expand the disk capacity of server or for a redundant boot device, the Sun StorEdge 3120 SCSI is the answer. Frontier Computer Corp is a trusted reseller of Sun StorEdge Arrays and can answer any question you may have. 866-226-6344