| File:Borg cube.JPG | |
| Type: | Cube |
| Length: | 3,036 m |
| Beam: | 3,036 m |
| Draft: | 3,036 m |
| Mass: | Unknown |
| Crew: | Unknown - 5,000 to 200,000 |
| Maximum Speed: | Unknown - capable of transwarp flight |
| Armament: | Observed to use cutting beams, tractor beams, plasma beams, phaser weaponry, torpedoes. |
| Defenses: | High-power subspace field, auto-regenerative hull |
The Borg Cube is the primary vessel of the Borg Collective. Measuring 28 cubic kilometers in volume and carrying up to 200,000 Borg drones, the Borg cube is one of the most destructive vessels in the galaxy. (VGR: "Dark Frontier") Millions of cubes are estimated to exist in Borg space in the Delta Quadrant; the largest grouping of cubes directly observed by Starfleet thus far is fifteen, by the crew of the USS Voyager in late 2373. (VGR: "Scorpion, Part I")
Every Starfleet encounter with a single Cube has resulted in heavy losses. 39 out of 40 ships were lost at the Battle of Wolf 359 in 2366, and dozens more in the incursion of 2373. A single cube is capable of eliminating all elements of civilization from an entire planet.
Borg vessels are highly decentralised in structure. No specific bridge, living quarters or engineering section has ever been observed. All vital systems are spread throughout the ship, making it highly resistant to damage and system failures. Shelby estimated in 2366 that a Cube could stay operative even if 78% was destroyed. Information and Collective communication are routed through power waveguide conduits and distribution nodes.
Borg vessels are also capable of transwarp velocities, through their network of subspace corridors and hubs. However, when a Borg Cube travels through these corridors, the temporal stresses are extreme. To keep the different sections of the vessel in temporal sync, a chroniton field is projected through specially designed conduits. (VGR: "Shattered").
Internally, the pressure is two kilopascals above what would be normal on a Federation starship. Humidity is an average 92 percent, and temperature is at 39.1 degrees Celsius. ("Star Trek: First Contact").