The HP StorageWorks Modular Smart Array 30 Dual Bus Enclosure is an Ultra320 SCSI disk drive storage enclosure. This enclosure delivers industry-leading data performance, availability, storage density, and upgradeability to meet customers' demanding and growing storage needs. The drive carrier is designed to support the fastest current Ultra320 hard drives on the same SCSI bus. Proving that technology transitions can be proceed smoothly without disrupting critical business environments.