History and other
Mattel · 5 models
Models
Keyboard Component (code name 'Blue Whale' / Intelliputer)1981 · console add-on4,000sold
Intellivoice1982 · console add-on
Entertainment Computer System (ECS)1983 · console add-on
System Changer (Atari 2600 adapter)1983 · console add-on
Intellivision Amico (announced, never released)home console
Yes item for History and other? Take a photo of it - the app will recognize the model, verify it’s in your hands, and give you a collectible card with a number and rarity.