The Syba SD-SATA150R 2 Port SATA PCI controller card with optional software RAID function. The controller card is compatible with SATA 1.0 devices, providing the versatility to use older storage, and features support for RAID 0 and 1 modes as well as port multiplier capability with command-based and FIS-based switching for connecting multiple external hard drives to a host PC through a single SATA connection.