SIIG Ultra 66 PCI Controller with 40/80-Pin Cable Dual-channel Ultra ATA/66 PCI controller with 40-pin, 80-wire Ultra ATA/66 cable Up to 66 MBps burst data transfer rates with Ultra ATA/66 drives Conforms to Ultra ATA/66 specification with full backward support on Ultra ATA/33, EIDE/Fast ATA-2 IDE and ATAPI devices Bus mastering reduces I/O processing load on central processor to increase the system performance 5-year warranty