Borg tactical cube

The Borg class 4 tactical vessel, or Borg tactical cube, was a type of heavily-armed Borg cube utilized by the Borg Collective in the 24th century. 
==History==
The only known encounter with the tactical cube happened in 2377, by the crew of the in the Delta Quadrant. The cube was chosen for its proximity to the Federation ship as they planned deployment of a nanovirus to infect the Collective to allow drones to retain memories following their regeneration cycles. During engagement, the cube managed to destroy the shuttlecraft and inflict heavy damage to Voyager before the Borg Queen initiated the cube's auto-destruct. ()
== Technical data ==
The tactical cube differed from the standard Borg cube in several ways, the most notable being the extensive hull armor that covered large portions of the exterior hull of the ship. The interior was also slightly altered from what is known of Borg architecture. The vessel's central plexus was protected by multi-regenerative security fields. ()
===Ships of the class===
* Tactical Cube 138
==Appendices==
===Background information===
The tactical cube appeared only in and . 
For further information on the studio model, see Borg cube model.
===Apocrypha===
* The Borg tactical cube was also used in the climactic final level of Star Trek: Legacy. Oddly, creators of the game boasted in a that the vessel was of their creation, and that it had been designed especially for the game's finale. The Borg tactical cube model had first appeared on Star Trek: Voyager six years before. Doug Drexler, the model designer, was not mentioned at all during the interview in question. Also, when the vessel appears during the mission, Admiral Janeway says she has encountered such a vessel before, and had help destroying it, clearly referencing the events of the episode.
* Tactical cubes are also featured in Star Trek: Armada II, in which eight of them can combine to form a massive tactical fusion cube.
* Ships of this class also feature in Star Trek: Conquest; however, the ship is ranked as a "cruiser" and has inferior fire power and shielding to an average cube.
* Tactical cubes are found in several campaign missions of Star Trek Online, classified as a dreadnought. Each one has approximately two times the weaponry of a standard cube and roughly four times the hit points, requiring a small fleet to destroy.
===External links===
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Tactical cube