So I forgot that I did this mod a year or so ago, and was reminded by another thread. I am attaching the STL file for the part so if anyone wants to do this mod they can. I picked up a Mr Backup years ago when I worked for a used game store in their hardware repair and restoration department. The staff bought it as defective as they had no idea what it was or what it did. They sold it to me for $10. It pretty much sat in a box at home for over a decade until last year when I pulled it out and looked deeper into it. The drive was dead but it already had the custom bios installed that allowed for hdd or cf cards to work. I looked on ebay for a cf card adapter and find that I can get a SD card adapter that converts a SD card to IDE. I picked that up and when it got here and worked I got started on a custom mount for it. Here are the results. I don't have any more pictures of it unfortunately as I sold it last year.
I've been playing the hella of my Z64 lately (I have a CF mod installed) but I'd like to eventually move to SD. Is there any chance that you have a spare adapter mount for sale?