The fastest Ultra ATA/133 interface upgrade solution for PC computers. Add performance to your computer with this dual channel Ultra ATA/ 133 card. This card automatically identifies and configures driver type and can share interrupts with most PCI with Ultra ATA/133 specification and PCI v2.2/v2.1 compatible with Ultra ATA 100/66/33 standard and ATAPI devices Offers an on-board flash BIOS for future Ultra DMA 0, 1, 2, 3, 4, 5, 6 and multi-word DMA 0,1,2 Achieves burst data rates up to 133MB/sec CRC error-checking provides data verification and achieves flawless data transfer Exceeds 137GB and supports various large capacity hard disk drives Supports up to 4 IDE devices Supports ATAPI CD-ROM, CD-RW, DVD-ROM and Zip devices Auto detects drives Fine tunes each attached drive for the best two independent Ultra ATA channels (built-in 256 byte FIFOs per channel) for faster data transfer Fully compliant with ACOI 1.1 (advanced Configuration and Power Interface) for advanced system power management