Data Crystal Chip

A Data Crystal Chip (also known as an AI Data Chip or Primary Storage Unit) is a form of file storage device used by the UNSC. It's purpose is to transfer "hard" data, meaning data that cannot be transferred over Slipspace or through a transmission because of the data's sensitive of complex nature. Examples of such data include AI data, navigation data, weapon technological charts, etc.

It appear once in Red vs. Blue as Freckles' Primary Storage Unit, or heart and mind, but was rigged by the Space Pirates to track Team Blood Gulch. After Epsilon-Church removes the tracker rigs and bugs from the Storage Unit's capacity, Caboose had the unit installed into his Assault Rifle.