This PCI based SATA Controller Card allows you to turn a PCI slot into one internal SATA and one external SATA (eSATA) connection. Supporting SATA 300 (SATA II) hard drives as well as SATA 150 hard drives, and data transfer rates of up to 3Gbps (1.5Gbps for SATA 150), this controller card is the perfect solution if you need an extra SATA port or want to externalize your storage. (includes low profile bracket)