It seems MadCatz went bust and the only place you can get a working copy of the RAT7 mouse drivers that works on OSX Sierra etc. Is some company that will gladly sell you the download. Oooooor….
on my google drive here
https://drive.google.com/open?id=1bda2-PFOkrGelcTqvc6z6yI-Y2_-iPSH
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