Connect a standard 6-pin PCI Express power connection on the Power Supply to 8-pin ATI and NVidia video cards 6in PCI Express 6 pin to 8 pin Power Adapter Cable / 6 inch PCIe Power Cable/ 6 pin to 8 pin PCIe An economic solution that saves you from upgrading your power supply Connect a standard 6-pin PCI Express power connection provided by the computer power supply to ATI and NVidia video cards that require an 8 pin power connection