... specifications, Compliant with UDMA6 ATA/133 specifications, 32-bit 33MHz PCI interface.Virtual DMA, Maximum IDE/ATA data transfer rate of ... ATA channels with 256 Bytes FIFO per channel, Up to four IDE/ATA devices, Compatible with Ultra ATA/100, Ultra ATA/66, Ultra ATA/ ... 33, DIDE/Fast ATA-2, IDE and ATAPI devices, ...