The adapter is a converter to convert the available PCI-E 1x of a motherboard into two USB 3.0 header. ^^ The adapter is the perfect solution to use the USB 3.0 connectors with 19/20pin. The converter thus provides a full-fledged USB 3.0 port. ^^ Converter plug-in for the mainboard, Fits into any USB 3.0 header. ^^ Bundling in USB 3.0 with up to 5GBit/s. ^^ You need the connect the SATA 15pin power for this pci-e card.