The Controller Pak, however, wasn't necessary for many games as the cartridges that the system used allowed for data to be directly saved onto it (much the same as the cartridges for the Game Boy). It plugged into the controller's accessory slot. However, it's actually called the Controller Pak by many games.
The Nintendo 64 was the first Nintendo system to have a memory card. The Nintendo 64's Controller Pak (front and back)
