It seems like gygabyte has tried only one model of these series: M500, M550, MX200, MX300.
Then they assumed other models could work.
The MX100 series doesn't appear at all.
Could it be they didn't even try one model of that series?
The MX300 series consists of 7 models and crucial says all of them can work with your MB, but only one of these models is present in your MB QVL.
Differences found on their pdf datasheets (i.e., "on the paper"):
