Unnamed Borg cubes

This article lists Borg cubes without any known designations.

Wolf 359 cube

This 24th century Borg cube ship of the collective was first encountered by USS Enterprise-D in 2365 at star system J25, where the Borg began to infiltrate the Starfleet vessel. After Q returned Enterprise to Federation space, this cube pursued, arriving at Federation borders over a year later, in late 2366. The cube again encountered the Enterprise, and, after flushing the Starfleet ship out of the Paulson Nebula, assimilated the captain of Enterprise, Jean-Luc Picard. (TNG episodes: "Q Who?", "The Best of Both Worlds")

Penzatii Cube

This cube had arrived in the Alpha Quadrant in 2367, several months after the destruction of the cube at Sector 001. A Borg drone who had been a human female named Reannon Bonaventure was on board this cube. It proceeded to assimilate the Penzatti homeworld, sending Bonaventure down to the surface of the planet with a large number of other drones. The cube was able to assimilate about 95% of the planet when it was engaged and destoyed by Delcara's Planet Killer. Bonaventure had been incapacitated shortly before the cube's destruction when she was attacked by a Penzatti woman, and as a result was the only Borg drone who did not self destruct when the cube exploded. (TNG novel: Vendetta)

2367 Cube

This was a cube that was sent to investigate the destruction of the cube at Penzatti. It was destroyed by Delcara's Planet Killer. (TNG novel: Vendetta)

Planet Killer Battle Cubes

Three Borg Cubes engaged Delcara's Planet Killer after the destruction of two other cubes. One of these cubes was destroyed by the Planet Killer's anti-proton beam, another was destroyed by the USS Repulse, and the third was swallowed whole by the Planet Killer. (TNG novel: Vendetta)

2369 cube

In 2369, a Borg cube traveling in Gamma Quadrant entered the Bajoran wormhole and was destroyed by a spatial disturbance, spewing debris in the vicinity of space station Deep Space 9. Because of the severe storms it caused in the wormhole, the starbase temporarily banned travel through the passage. (DS9 novel: The Siege)

Locutus's cube (2377)

See: Locutus's cube

Supercube

In or sometime before 2380 a group of Borg, cut off from the remainder of the collective following the damage dealt to the Borg by the USS Voyager on her return to Earth, gathered to create a new cube in orbit of a moon in Sector 10 of the Alpha Quadrant. The Borg, functioning alone from the former collective at large built the massive cube and began to develop a new queen in preparation for an attack on Earth, their aim; to wipe out Humanity, who had so frequently dealt them deathly blows.

Via his residual connection to the Borg Jean-Luc Picard detected the Borg activity and took the USS Enterprise-E to stop it, before it, and the new Queen, were finished and ready to attack. After initial attempts failed the Enterprise crew were able to infiltrate the cube and successfully destroy the Queen, which put the cube and remaining drones into a state of hibernation. (TNG novel: Resistance)

The cube remained inactive and was studied by Starfleet for some time, the drones were removed for study and by all reports the cube was considered dead. Unfortunately this was not the case, the cube itself developed and prepared, evolved and beyond the capabilities of any cube before. When Kathryn Janeway arrived to satisfy her curiosity of the cube's status it attacked her and the USS Einstein, assimilating the starship and crew and making Janeway the new Queen. The cube then set out to destroy Earth, absorbing, rather than the less efficient assimilation, anything that got in it's way and anything it required, including the entire mass of the planet Pluto and it's moons, ever growing with it's increased mass.

The cube then flew into Sol to gather enough energy to spawn six smaller vessels which it used to hold Earth hostage to try and attract Jean-Luc Picard and Seven of Nine who it wished to re-assimilate. Both persons were on the Enterprise preparing plans to resist. They came to Earth with two plans; the re-activated Doomsday machine which, piloted by Seven attacked the cube, inflicting huge damage. Unfortunately the success was short lived and the cube soon began to absorb the Planet Killer too, infusing it's impervious neutronium hull into the cube's own structure.

Fortunately the second plan was also ready in Seven, the Endgame virus, which had been downloaded into her ready to infect the Borg with an insolvable problem should she be assimilated. As she was absorbed into the cube she sent the virus, but it was blocked by a firewall. She vented her frustrations in thought, and the Collective and Queen reacted, taunting her, but she fought back, and within the Queen Janeway reached out, and resisted, broke the firewall and allowed the cube to be infected. The Borg infected, attempted to solve the virus, causing the cube continually reconfigure, until the stresses became too much and it was destroyed. (TNG novel: Before Dishonor)

Starfleet scientists later named this cube a Borg "Supercube" referring to the cubes extreme size and power. (TNG novel: Greater Than the Sum)