Garage sale haul finds 2013 'trash can' Mac Pro nestled inside 2010 Mac Pro enclosure — Mac Pro inception still needs some work to get running
by editors@tomshardware.com (Hassam Nasir) from Latest from Tom's Hardware on (#74W4K)
A lucky buyer on Reddit found a 2010 Mac Pro in a garage sale and it had a whole 'nother 2013 Mac Pro sitting inside. The tower didn't have any internals, which implies that the owner was likely using it as a sort of DIY enclosure for the trash-can Mac Pro, to perhaps mount extra stuff since the 2013 Mac Pro has no expansion slots.