Monoprice 107638 2 Port Internal SATA to eSATA Bracket (107638) This 2 port internal SATA to eSATA converter bracket gives your computer's internal SATA connection the capability to be used with up to two external eSATA device like Hard drives DVD drives and devices that specifically use an eSAtA connection The bracket supports data transfer rates of 3Gbps and can easily be connected to your computers available SATA port to expand your PC with two external eSATA connection Interfaces: 2x SATA 7 pin internal & 2x eSata external Cable length: 18 inches System requirements: Two free SATA port on motherboard One free PCI slot bracket