Iwill have the first board with Serial ATA. Even that there's no serial ATA hard drives out yet, they are the first to make the move. The board still comes with the normal IDE Ultra ATA/133/100/66/33. As they say "IWILL P4G Guarantees All You Need for Now and Future". Read more for link and info. "IWILL's mission is to provide customers with high-quality, cost effective and innovative solutions for their high-end PC desktop and server neeHowever, this is not enough, IWILL also integrates Serial ATA (S-ATA). S-ATA is the standard for the next generation of the storage interface with data transfer rate at 1.5Gb/sec. The S-ATA specification is designed to increase the available bandwidth from a disk drive to the rest of the PC, replacing the parallel ATA interface used today. S-ATA specification is designed to increase the available bandwidth from a disk drive to the rest of the PC, replacing the Parallel ATA interface used today. S-ATA is scalable and will allow future enhancements to the computing platform." Source: Iwill