Starcraft Probe 3D print model

Probes date back to the protoss's Second Age. They were originally designed by the Khalai Caste to lay the foundation for protoss colonies on hostile worlds where living workers would be at too great a risk. Per the nature of robotics at the time, these probes had a refined and luxourious appearance. Probes from the Great War era had longer stabilizer fins, but phase-smiths learned that they could become a liability in the midst of a widescale, vicious battle.

In more recent times, some terran junker gangs have managed to salvage probes from abandoned protoss colonies, retrofitting them with terran technology to bring them into their service.