this is the part you need.
"So I would get this? the only thing I need is that vga female adapter "
This is incorrect you don't have a vga port on your pc you only have a video card with two DVI ports there is no VGA port.
I think you are thinking the com port is a vga port.
in the picture below it is listed serial port (dial up modem) tell me if I am wronghttp://tinyurl.com/7uuutkg
This is not a VGA port and doesn't support video. If you get the part from the first link you will be able to plug your vga cable into the DVI port on the video card which is your only option since there is no onboard video.