If you're curious enough to reproduce the results yourself, obviously it's Walmart (I'm not proud, but they're the only store within an hour of my small town that carries essentially any electronics at all). I got the results searching for "20tb external drive" (not carried, it turns out) and trying to filter by capacity and in-store, but I imagine you could perform a less specific search and perhaps get even more amusing filters.
What I love is they include "state" in there. Is not a solid state drive, but it does have some sort of unspecified status at times, so it's a state drive.
Also
System Compatibility: Supported,, Not supported, Game machine.