Serial ATA technology will allow for platform cost reductions and performance improvements while supporting a seamless transition from Parallel ATA technology. Serial ATA will supply storage interface headroom for many generations to come, beginning with 1.5 Gbps, and scalable to 2x, 4x and beyond. At the same time, Serial ATA is a drop-in solution that is compatible with existing ATA software drivers and will run on standard operating systems without modification.
It will provide for systems that are easier to design, with narrower cables that are simple to route and install, smaller cable connectors, improved silicon design, and lower voltages, which alleviate current design constraints in Parallel ATA. Configuration of Serial ATA devices will be much simpler, with many of today's requirements for jumpers and settings no longer needed..." NULL