...SyncRAID technology doubles the performance of traditional enterprise-class RAID systems by eliminating the read-modify-write bottleneck traditionally required in RAID high-reliability mode...
...the patented synchronous disk striping and hardware-based exclusive-OR (XOR) technique of NetCell’s SyncRAID single-chip multi-disk storage acceleration engine technology will enable PC users to combine several off-the-shelf ATA or serial ATA (SATA) disk drives into a single large, high-speed storage unit...
...unlike typical RAID5 host bus adapter products, the SyncRAID array is designed to be completely transparent to the host by utilizing existing IDE class drivers, ensuring plug-and-play installation simplicity without requiring special drivers, installation disks or other software for standard operation...
...parity-striped array has been demonstrated to deliver an effective 190 to 200 Mbytes/s of sustained read throughput, and up to 120Mbytes/s of sustained write throughput, using off-the-shelf 7200RPM ATA/SATA class drives, using a mere five percent utilization of the CPU...
The whole enchilada:
http://www.netcell.com/news_page.htm#AMD_9-23-03