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Whether or not that will fit inside an MBP is a total crapshoot. It's probably gonna take some experimentation, as I've never heard or seen this done before and I've been in the market for upgrading a Late 2013 model (and a trashcan Mac Pro) for quite awhile.

It also doesn't support anything larger than 256/512GB or more than one or two brands. I don't see the reason to try this out.
 
I need a job first to afford this. It is really a joke that I can get a non apple drive with standard connector for half the prices...
 
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