The AOC-LPZCR1 Add-on Card supports SAS, SATA and SCSI modes (interchangeable via jumper settings), utilizes motherboard's existing SAS / SATA / SCSI I/O Channels, eliminates the need of a SAS / SATA / SCSI I/O chip on motherboard, saves on cost of a regular RAID card, and offers high-speed throughput, scalability and space-saving/cost-effective hardware RAID solution.