HP SmartArray 642, SCSI, PCI-X, 0, 1, 0+1, 5, 0.320 Gbit/s, 64 MB, DDR
The Smart Array 642 Controller is a 64-bit, 133MHz PCI-X, dual channel, SCSI array controller for entry-level hardware-based fault tolerance that allows you to configure up to 6 internal and 14 external hard drives to store up to 2.9 TB of storage.