Notice: Pls update your montherboard bios as newest before using it. ^^ Make it possible for PCI device to work on PCIe slot(Can't work in computer USB port directly) ^^ It allows to add 2 PCI device on 1 single PCIe slot ^^ PCIe 1X interface can fit in PCIE X1 X4 X8 X16 slot of motherboard ^^ Low height Angled SATA cable ensure that long PCI card will not resist SATA power connection.