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The following is a list of unnamed Borg cubes.

By drone[]

By incident[]

First contact cube []

Borg cube tractors Enterprise-D

The first Borg cube contacted by a Starfleet vessel

In 2365 Starfleet encountered the first known Borg cube in System J-25 when Q threw the Enterprise into that system. This event constituted the official first contact, although the Borg themselves had been encountered two hundred years before by the crew of Enterprise NX-01 and also by civilian researchers in the 2350s.

The Borg cube encountered in 2365 dispatched two drones to the USS Enterprise-D, which examined the ship's engineering spaces. The cube then attacked the Enterprise, slicing into the saucer section and using a tractor beam to extract components from three decks. Captain Picard had an away team, consisting of Riker, Data, and Worf, beamed aboard the Borg vessel in order to learn more about the Borg. The away team learned a great deal, but then the Enterprise had to retrieve the team after finding out that the Borg were telepathically using their collective hive mind to repair their damaged vessel. The Enterprise left at warp speed pursued by the Borg cube.

The Enterprise increased to maximum warp, but still had no success in escaping. Riker ordered them to arm photon torpedoes and Picard gave the order to fire, but the torpedoes had no effect. The Borg ship, after getting within firing range, fired a shield-draining missile twice and the Enterprise, with very low shields, fired torpedoes again, with the same result. After determining their weapons were useless, Picard pleaded with Q to send the Enterprise back into Federation space, which he did. It is unknown where the Borg cube went after Q helped the Enterprise escape. (TNG: "Q Who")

The cube encountered at the end of the next year was said to have identical dimensions to this ship. (TNG: "The Best of Both Worlds")

The Borg proclivity towards assimilation was not yet established at the time this episode was produced, which explains why the Borg were only interested in technology and not taking over the crew. A possible in-universe explanation might be that the Borg wanted to learn more about Starfleet before assimilating any Humans, though they had already encountered the USS Raven some years before. Several non-canon novels and short stories have also suggested that the crewmembers found missing at the end of the episode, instead of being killed, were in fact assimilated.

Sector 001 cube []

Borg cube approaches Earth

The Borg cube of the Battle of Sector 001

In 2373, this Borg cube attacked Earth much in the same manner as the previous cube from Wolf 359. The Battle of Sector 001 ended when this Borg cube was destroyed by a Starfleet armada using tactical knowledge of Captain Picard from his time as Locutus. The Borg Queen was on board this cube, and attempted to escape back in time using a Borg sphere. (Star Trek: First Contact)

Nekrit Expanse cube []

Borg cube, Unity

The derelict Borg cube

In 2368, this Borg cube was disabled by an electrokinetic storm within a nebular region of the Delta Quadrant, the Nekrit Expanse. With the majority of the Borg aboard the cube killed, eighty thousand surviving drones (freed from the Collective) fled to a nearby M-class planet. The derelict cube was later discovered by the USS Voyager in 2373 and subsequently boarded by its crew. It was later visited by Commander Chakotay who successfully reactivated the ship's neuroelectric generator, rejoining the surviving Borg into a new collective called the Borg Cooperative. The reactivation of the generator also reactivated the cube and its dormant drones, however the Cooperative ordered the cube to self-destruct before all its systems were fully operational.

The cube's complement of drones consisted of many Alpha and Beta Quadrant species including Humans, Romulans, Cardassians, Klingons, Farn, and Parein. It was the first Borg vessel encountered by the Voyager crew. (VOY: "Unity")

Klingon space cube []

Klingon-Borg encounter

Unspecified battle between the Klingon Defense Force and a Borg cube

A squadron of the Klingon Defense Force battled a Borg cube of the same type that engaged Starfleet in the Battle of Wolf 359 and suffered substantial losses. (VOY: "Unity")

The presence of assimilated Klingons in the Delta Quadrant, as mentioned in Unity, and the battle Chakotay became aware of during his neural link with the Borg Cooperative, suggests that there were additional cubes which had attacked both the Alpha and Beta Quadrants in the past, other than the ones which have been seen on screen in episodes and film.

Two Borg cubes []

Borg cubes destroyed by 8472

Two Borg cubes destroyed

In 2373, these two Borg cubes, which confronted Species 8472, were destroyed. (VOY: "Scorpion")

Long-range probe cubes []

Scan of Borg cubes (Scorpion)

Cubes detected by Voyager's probe

In 2373, Voyager launched a long-range probe. Several months later, the probe encountered these two cubes and was assimilated. It was this encounter that proved Voyager had entered the heart of Borg space. (VOY: "Scorpion")

Fifteen Borg cubes []

Borg armada without voyager

The fifteen cubes

In 2373, fifteen Borg cubes passed the USS Voyager in pursuit of Species 8472. One of these cubes stopped momentarily to scan Voyager with a polaron beam. All fifteen vessels were later destroyed by a Species 8472 bio-ship. (VOY: "Scorpion")

Sister ships to Seven of Nine's cube []

Borg cubes at the destroyed Borg planet

The two aft accompanying cubes moments before their destruction

As captain Janeway sought to contact the Borg in order to make her proposition, she found that besides Seven of Nine's cube, two other cubes were in orbit around the Borg planet Voyager arrived at. These two cubes were destroyed by the shock wave of the exploding planet, detonated by Species 8472, while trying to protect Seven of Nine's cube from destruction, in which they succeeded to their own detriment. (VOY: "Scorpion")

Borg cubes in fleet []

Borg 8472 battle

A number of cubes in a larger fleet

In 2374, a Borg fleet consisting of 312 ships, a number of which were cubes, were destroyed by Species 8472 in Matrix 010, Grid 19. (VOY: "Scorpion, Part II")

Cube encountered by Species 8472 []

Borg cube in flashback

A Borg cube

This Borg cube appeared to Tuvok in a flashback he experienced during a telepathic communication with a member of Species 8472, in 2374. (VOY: "Prey")

The image of this ship's appearance originally appeared as the encounter with Seven of Nine's cube in "Scorpion, Part II", however, in this case, with the Voyager element removed.

Species 116 homeworld cubes []

Borg in Arturis's home system

Cubes approaching the Dauntless

In 2374, a member of Species 116, Arturis, who blamed Captain Kathryn Janeway for the assimilation of his homeworld, tried to lure the crew of the USS Voyager into a trap. He disguised his ship as a Starfleet vessel, so he could get the crew of Voyager on board. However, his plan was discovered and he only managed to capture Captain Janeway and Seven of Nine before he activated the quantum slipstream drive and set a course for his former homeworld, inside Borg space. Voyager pursued them and managed to rescue Janeway and Seven. As the vessel emerged from slipstream, it was quickly surrounded by at least four cubes. Arturis and his ship were presumably assimilated. (VOY: "Hope and Fear")

Species 10026 homeworld cubes []

Borg cubes engage Species 10026 vessels

Three cubes engages several Species 10026 vessels

When Seven of Nine briefly returned to the Borg Collective in 2375, a fleet consisting of the Borg Queen's ship and two cubes left the unicomplex to assimilate Species 10026. Upon arrival they were attacked by 39 vessels armed with pulse weapons, which could penetrate their shields. With the unwilling help of Seven of Nine, the Borg were able to adapt and assimilated almost the entire species. (VOY: "Dark Frontier")

Unicomplex cubes []

Multiple cubes were present at the Borg Collective's Unicomplex in 2375. (VOY: "Dark Frontier")

Cube reduced to debris []

Salvage Aliens' vessel

Salvaging a Borg cube

In 2377, Voyager found a debris field, the remains of a damaged cube near the Yontasa Expanse. (VOY: "Imperfection")

Cubes near transwarp hub []

Numerous cubes were located near the transwarp hub that USS Voyager located in a Delta Quadrant nebula. At least two were destroyed by Voyager. (VOY: "Endgame")

Cube in Grid 641 []

Borg cube, Grid 641 graphic

Borg cube display

This cube was directed to Grid 641 to surreptitiously track USS Voyager in 2378. (VOY: "Endgame")

Battle against the Romulans []

USS Cerritos witnesses the Romulans fighting the Borg

Six cubes battle the Romulans

These six cubes participated in a battle against twelve Romulan warbirds during the late 2370s. The battle was happened upon by the USS Cerritos before the Federation starship hastily departing the battlefield. (Star Trek: Lower Decks Season 1 opening credits)

Battle with Pakleds against the Romulans and Klingons []

USS Cerritos witnesses the Romulans and Klingons fighting the Pakleds and Borg

Four cubes battling the Romulans and Klingons

Sometime around 2381, these four cubes along with two Pakled Clumpships participated in a battle against eight D'deridex-class Romulan warbirds and six Klingon Birds-of-Prey. The Cerritos was also present, but hastily departed the battlefield after taking weapons fire from the Borg. (Star Trek: Lower Decks Season 2 opening credits)

Battle with Pakleds against the Romulans, Klingons, and a Crystalline Entity []

USS Cerritos witnesses the Romulans and Klingons fighting the Pakleds, Borg and Crystalline Entity

Battling the Romulans, Klingons, and a Crystalline Entity

Sometime around 2381, these four cubes along with two Pakled Clumpships participated in a battle against eight D'deridex-class Romulan warbirds, six Klingon Birds-of-Prey, and a Crystalline Entity. The Cerritos was also present, but hastily departed the battlefield after taking weapons fire from the Borg. The Crystalline Entity also destroys one of the Borg cubes. (Star Trek: Lower Decks Season 3 opening credits)

Cube encountered by USS Protostar []

Borg cube, 2384

Borg cube encountered in 2384

This disabled cube was encountered by the USS Protostar in 2384. (PRO: "Let Sleeping Borg Lie")

While commenting on the familiar appearance of this vessel In a tweet, screenwriter Aaron Waltke suggestively noted this cube could be the ship that becomes the Romulan Artifact in Star Trek: Picard: "Newly built Borg invasion cube is functionally hobbled by Janeway’s neurolytic pathogen. Borg cube goes dormant. Still hobbled Borg cube is awakened by a Medusan. Cube moves on, tries to rebuild a new collective. Borg cube tries to assimilate the wrong Romulan ship. Maybe..." [1]

Beta Quadrant wreckage []

In an alternate timeline, in which USS Voyager was lost while using quantum slipstream drive, Starfleet Intelligence recovered a Borg temporal transmitter in the wreckage of a Borg cube in the Beta Quadrant sometime before 2390. (VOY: "Timeless")

Regarding this vessel, in an Instagram story dated 5 March 2020, when asked if The Artifact was the same cube, Michael Chabon responded: "Do you have a theory?" [2]