Servitors are a type of cyborg employed by the Imperium of Man and in particular by the Adeptus Mechanicus. Servitors are human beings who have had their brains cybernetically modified. This procedure turns them into what are effectively biological robots capable only of obeying orders. Most servitors are created from vat grown clones, but many are created from convicted criminals. Most servitors have prosthetic limbs and other modifications to suit them to specific tasks. Servitors are used as laborers in factories and as mechanics, and some servitors are equipped with weapons for use as soldiers by Adeptus Mechanicus, carrying heavy guns or serving as close-combat support units.