What is the name of the plug that gives extra power to the video card?

I want to get this video card: http://www.newegg.com/Product/Product.aspx?Item=N82E16814131372

and was wondering if my power supply had the plug that would go into it. What is it called/ look like? Does it even need that plug? Thanks!|||Yes, you need a 6pin PCIe connector and a minimum 450w power supply for that card.

This is what the connector and adapter (if needed) look like: http://www.google.com/imgres?imgurl=http…|||that would be a pci-e 6 pin....if you dont have one you can use 2 4-pin molexs with an adapter.