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.