I don't know what the cable is specifically called, so I am having no luck finding it. I just keep finding adapters. Am I able to buy a replacement?
The only power cable that comes with video cards are molex to 6(+2)PCIe power adapters. But if your PSU is capable of handling the 6750 it should already have the power cables you need.
If the power cable you are speaking of really was for power then it might be a type of adaptor cable so your power supply in your PC can connect to your graphics card. Graphics cards typically are getting their power from the power supply directly and usually there's either a 6-pin or 8-pin plug on your power supply (assuming you have the right power supply) that connects directly to the graphics card. Sometimes there is no 6 or 8 pin connector so the manufacturer of the graphics card will supply an adaptor cable to connect to a standard Molex connector. (see link)
The power cable? Power cables don't come with the graphics card, they come with the power supply. Maybe you mean the cord that connects to your monitor? Common ones are DVI, VGA, and HDMI.
