Graphics card has an 8 pin connector. Only options I have left from PSU are a 6+2 pci deal or an adapter that came from graphics card with 2x6 pins. I have pictures but don't know how to post if that would help.
The 6+2 connection is to allow for compatibility between 6 or 8 pin connectors on graphics cards. As tiny voices said, that connection is for your graphics card, so use that rather than going with an adapter.