GE Microwave Smart Board Part # WB27X10776
The above board looks different then yours?
Does the replacement board ship with adapter(s) or an instruction sheet that explains how to install it in place of previous versions of the board?
When you click on the photo or part number above it will take you to the parts page.
It does not show that it comes with instructions or adaptors so I would have to say no it don't come with it.
Maybe the replacement part is used in more then one model and has other plugs on the board for the different models.
What is the model number of your microwave?