28 pin SSD adapter or enclosure needed for Late 2014 MBP

I've been trying to find an adapter for a Late 2014 MBP Retina SSD. Standard msata didn't fit, and from a few consumer reviews of other enclosures and adpaters, it seems to be uncertain if one exists. Its a "mini PCI-e" interface, but its been hard finding an enclosure using that term that doesn't end up being an msata one. The SSD installed has 28 pins (12+16). I've seen some mini PCI-e to usb adapters, but they are from sketchy sites with no product reviews. I was hoping someone here had experience with this and could recommend one that worked for them.