The Promise FastTrak TX2300 2-port SATA RAID PCI adapter offers a low-cost solution for implementing a RAID 0 or RAID 1 storage system with up to two high-performance Serial ATA disk drives. Promise Technology is the leading provider of Serial ATA interface solutions, and with the FastTrak TX2300, users can benefit from Promise's experience in maximizing Serial ATA storage system performance. The controller supports SATA 3Gb/s drives and conforms to Serial ATA II, Extensions to SATA 1.0a specification with Native Command Queuing and Disk Activity LED headers support. In addition to Native Command Queuing, the controller also supports Tagged Command Queuing with drives that can take advantage of this capability. Command Queuing increases I/O performance by intelligently reordering data requests so that the data can be more quickly accessed than if the commands weren't ordered. The low-profile form factor FastTrak TX2300 PCI adapter incorporates many of Promise Technology's advanced host bus adapter features.The 66MHz PCI bus supports up to 266MB/sec burst data transfer rate.The FastTrak TX2300 also includes large LBA support for drives above 137GB, and its onboard BIOS automatically identifies and configures drive type.