Psi driver are protoss tool used by the Khalai Caste in their engineering, particularly on large starships such as carriers. They discharge a large amount of energy, and in emergencies can serve as a weapon to electrocute enemies.[1]


  1. Kogge, Michael. "Carrier." (May 09, 2013). Blizzard Entertainment. StarCraft Lore: Carrier Accessed 2013-05-09.
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