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
This 6in LP4 to 6 Pin PCI Express Video Card Power Adapter converts a standard LP4 power connector on your existing power supply to a 6 pin PCI Express video card power connector, allowing you to install a PCIe graphics card without having to upgrade the computer power supply.