A:Answer Your 6+2 or 8 pin connectors should be part of the power supply your PC has. If the power supply doesn't have them, you may be able to purchase them if it is a modular power supply. Modular supplies have ports on the power supply unit (PSU) front face, where you manually connect cables. Non-modular supplies just have one huge sleeve where all the cables emerge from the PSU, and don't really allow for extra cables. Pop the side panels off to make sure the cables aren't tucked away or something if someone else made your PC.