Where do I connect a supplemental power cable to?

[TechnoColor5]

Hello,
I just recently purchased a PNY Nvidia GeForce GTX 660 and was wondering where on the PSU am I suppose to plug the supplemental power cord into?

 

[bigshootr8]

The plug comes from your power supply and is supposed to connect into your card. I assume you are talking about this.

You will need that to power your card if your power supply does not have one your card probably came with one of these. In which case you would need to have 2 molex connections to connect into to supply the power of the 1 PCI_Express power connection.