The Terminus-class was similar in appearance to the smaller Gage-class transport, but wielded far more firepower. Despite the similar features found onboard the two ships, the Terminus destroyer was built as a dedicated warship used for a number of tasks such as escort missions, search and destroy or transporting important Imperial figures. This ship class boasted an impressive array of weaponry making it a match for the Galactic Republic's Thranta-class corvettes that were used as the workhorse for the Republic Navy. Despite its ability to deal heavy damage to ships of its size, it was incapable of taking on the Republic's Valor-class cruisers. These ships were also used for securing recently captured territories in order to not tie up Harrower-class dreadnought.
For the Imperial Navy, the standard type of Terminus destroyer was commonly seen and used in combat but it had been made apparent that they were also able to undergo refits and become a superweapon. A notable example of this was the Ascendant Spear, formerly a standard Terminus destroyer made into superweapon. The Terminus also had a hangar bay located on the ventral side.
A pair of these vessels were used as patrol ships of the Vesla system in the years after the Great Galactic War. Republic Strategic Information Service agent Theron Shan managed to avoid the two destroyers during his infiltration of the Black Sector.
During the Cold War, Terminus-class destroyers often supported other capital ships during military operations. As well a number of them were used to protect Vaiken Spacedock from enemy attacks in combination with Harrower-class dreadnoughts
This class would be used greatly during the renewed conflict between the Sith Empire and the Republic known as the Galactic War where they were deployed in combat missions with the iconic Harrower-class dreadnoughts against the Republic Forces. Darth Marr made use of a flagship of this class until it was destroyed by the Eternal Fleet in Wild Space.