The Replicator-controlled vessel is a ship of unknown design which has twice been utilized by the Replicators. The ship was first encountered by SG-1 when they travelled to an unnamed galaxy. It inadvertently saved them from Apophis by firing on his mothership. Its combat capabilities are shown to be superior to that of the mothership, as it not only landed several hits with her energy weapons, but destroyed every staff cannon blast fired at it with point defense lasers. SG-1 hid close to a nearby sun rather than observe the battle, and by the time they decided to check on the winner, the ship was nowhere to be found. Since the Replicators had boarded the mothership and no wreckage was found, the ship presumably left. (SG1: "Enemies")