1-2Adaptec Ultra320 SCSI Cards User’s GuideNote: Read the Installation Guide for your Adaptec SCSI Card ifyou need instructions on installing the SCSI card andconnecting SCSI devices to it.Ultra320 SCSI on the Adaptec SCSI CardThe Adaptec SCSI Card enables you to connect up to 30 SCSIdevices—such as very large arrays of high-performance hard diskdrives, external storage subsystems, Ultra320/Ultra160 hard diskdrives, scanners, and CD-ROM drives—to any Intel-based or Intel-compatible computer with 64- or 32-bit PCI/PCI-X expansion slots.Ultra320 is an enhanced SCSI technology that transfers data at upto 320 MB/sec. Ultra320 SCSI allows cable length of up to 12meters for optimal connectivity and flexibility.The Adaptec SCSI Card 39320A has two independent SCSIchannels, each with a maximum throughput of 320 MB/sec perchannel. Adaptec SCSI Card 39320A SCSI Channel A—(marked CH A on the card) has oneinternal connector and one external connector. SCSI Channel B—(marked CH B on the card) has oneinternal connector and one external connector.The Adaptec SCSI Card 29320A and the low-profile 29320ALP aresingle channel SCSI cards. The Adaptec SCSI Card 29320A has amaximum throughput of 320 MB/sec and a SE channel thatsupports a maximum transfer rate of 40 MB/sec. The 29320ALPhas an Ultra320 SCSI channel that supports a maximum transferrate of 320 MB/sec.
