The SIIG eSATA II-150 PCI i/e Storage Controller is a PCI card designed for SATA II interface. With a single port, this non-RAID controller card supports high-speed SATA 1.5Gb/s connections. The model SC-SA1012-S1 is compatible with a PCI port and offers internal SATA II interfaces for efficient data storage and transfer in computer systems. Ideal for expanding storage capabilities, this product from SIIG is a reliable choice for those looking to enhance their computer's functionality.