Hey Tom's community! Got a weird one for yall. The n64 required an expansion card...ish... thingy... in order to play certain games. It had a red top and black body and fit into a middle slot on the system on top.
The question is, what was it? Who designed it ( who did Nintendo get hte hardware from?) Was it some sort of additional CPU? Was it a new Gpu? What capabilities did it add to the system?
I believe it was called the 'Expansion Pak' it added a few MB to the system which then enabled some games to have more detail. I bought back in the day to play Majoras Mask, as it was required.