The Collectors used these ships to abduct the inhabitants of numerous human colonies. The Collector ships are equipped with an Identify Friend/Foe (IFF) system that allows them to traverse the Omega 4 Relay without harm.
Details of this capability are never revealed. The cruisers also appear to be equipped with sensors capable of detecting a vessel with a heat retaining stealth system (such as the Normandy). Being a particle beam weapon, it ignores kinetic barriers, and it is powerful and accurate enough to critically damage an Alliance Navy frigate in only a few shots. The weapon is capable of firing either multiple shots in quick succession or a single devastating blast. The cruisers are armed with a large particle beam weapon which is capable of multi-directional fire. Despite their huge size, these ships are capable of landing on the surface of a planet (resting vertically), although they require an enormous thruster engine in order to take off quickly. The interiors consists of cave-like hallways, similar to an insect hive, and vast open areas traversed by floating hexagonal platforms. As is typical of Collector technology and design, the vessels are hybrids of organic protrusions with a metallic superstructure.
The ships are vast in size, easily dwarfing both the original Normandy and her larger successor.
