Amazon.com: StarTech.com 6in LP4 to 6 Pin PCI Express Video Card Power Cable Adapter - Power adapter - 4 pin internal power (M) to 6 pin PCIe power (M) - 6 in - LP4PCIEXADAP : Electronics
PCIe 6 pin to 8 pin Power Adapter Cable - Computer Power Cables - Internal | StarTech.com