It'd have to literally be a full CPU that somehow has only read access to the RAM such that it'd be a genuine feat of engineering. Either that or the whole thing is just a virtualized device, but the cooling demands for either method would exceed the threshold for passive cooling in those enclosures and require fans at that point.

Bloomberg wrote an article several years ago that was absolutely slaughtered for making up from bad sources such a chip concept except even more unbelievable because they claimed it was hidden inside the PCB itself and only like 6 or 8 pins? Absolutely absurd for anyone who understands electrical engineering or microcontrollers at all.