molex

I have a Gigabyte GV-N75TOC-2GI that I have to use with a proprietary 350W 80+ White power supply (see this thread), the issue is that the graphics card specifications indicates that it requires at least a 400W power supply, it also has a 6 pin PCI-E power connector, and the power supply doesn't...

On the image below, of the four metal contacts behind the Molex power connector, the one furthest right is broken. Does anyone know what they are called and where I might get replacements? Many thanks. :)