The Adaptec U320 SCSI RAID 0 or 1 is a high-performance 64-bit/133-MHz PCI-X, dual-channel SCSI card with
integrated RAID 0 and 1. It provides data protection at the fastest SCSI speeds available up to 640 MB/sec total
throughput using Ultra320 SCSI Low Voltage Differential (LVD) devices.

The Adaptec U320 SCSI RAID 0 or 1 controller has the following features:

Two independent bootable SCSI channels
15 multifunction devices per channel
Mixing of LVD and SE devices, with associated performance degradation. (HVD devices are not supported.)
Wide or Narrow SCSI data path
CRC-32 error detection for Ultra320/Ultra160 modes during data I/O phases in LVD mode only
Automatic termination control
Manual termination override for multi-initiator environments
Fuse-protected (up to 1.25 A) termination power circuit
SCSI card and devices are configurable using SCSISelect®, the BIOS Configuration utility