The cardio package was an cybernetic implant that micromanaged the cardiovascular system in order to increase the user's constitution faster and further than simple hard work and exercise would be capable of. It encouraged the brain to send vital chemicals to the heart and other organs, revitalizing them and giving the user greater physical reserves.
- Star Wars: Knights of the Old Republic (First appearance)
- Star Wars: Knights of the Old Republic II: The Sith Lords
- Knights of the Old Republic II: The Sith Lords: Prima Official Game Guide
- Knights of the Old Republic Campaign Guide