Expandable Storage Plus 320 Model DS4 disk enclosure provides support for the latest SCSI Ultra320 technology disk drives for pSeries Servers. EXP Plus 320 offers increased performance, as compared to prior EXP Plus models, with affordable prices for direct attach SCSI storage needs in both RAID or non-RAID protected configurations using the complementary pSeries host adapters. The EXP Plus 320 accommodates up to fourteen, hot-swappable IBM U320 disk drives providing over two terabytes (TB) of storage capacity per enclosure. When attached to the pSeries Ultra320 SCSI host adapter, the EXP Plus 320 provides throughput of up to 320 MB per second.The IBM EXP Plus 320 attaches to pSeries and select RS/6000 servers with the following host adapters:PCI-X Dual Channel Ultra320 SCSI Adapter (#5710, #5712);PCI-X Dual Channel Ultra320 SCSI RAID Adapter (#5703, #5711);PCI Dual Channel Ultra 3 SCSI Adapter (#6203);PCI 4-Channel Ultra3 SCSI RAID Adapter (#2498);PCI Dual Channel Ultra 2 SCSI Adapter (#6205).