Adaptec SCSI Card 39320 - Ultra320 SCSI: is a 64-bit 133 MHz PCI-X, dual-channel Ultra320 SCSI card with integrated HostRAID RAID 0, 1 optimized for internal connections. The 39320-R is a cost effective hardware based RAID, a better alternative to software based RAID in the market today. It provides worry-free data protection at the fastest SCSI speeds available up to 640 MBps ideal for mainline storage, streaming video and audio, and other bandwidth-intensive applications.