Serial ATA (SATA) is the latest generation of the ATA interface, and an optimal solution for RAID. SATA hard drives deliver blistering transfer speeds of up to 150MB/sec. Serial ATA uses long, thin cables, making it easier for you to connect your drives and improving the airflow inside your PC. Also, Serial ATA uses a point-to-point configuration topology, eliminating master/slave bus sharing and improving multi-drive system throughput.If you want to move into the world of SATA, with the FastTrak S150 TX4 you can attach up to four Serial ATA drives to create ultra-fast RAID arrays.The FastTrak S150 TX4 supports RAID 0, RAID 1, and RAID 0+1 configurations. With a FastTrak S150 TX4 controller, you also get the benefit of Promise Technology's industry-leading ATA feature set. To assure faster transfers, Promise's ATA software uses sophisticated handling techniques to make data transfers more efficient and minimize overloading the host system CPU and slowing system response. Every Promise controller also supports drive capacities exceeding 137GB. Promise cards can be used on both 33MHz and 66MHz PCI bus motherboards for wider compatibility and improved performance.