Star Blasters were a class of ships used by the Nova Corps.
Bounty Hunters Attack
During the Battle of Xandar, Garthan Saal led a fleet of Star Blasters to defend Xandar from Ronan the Accuser's Dark Aster. The fleet linked together to blockade the Dark Aster until Ronan used his Cosmi-Rod powered by the Orb to destroy the fleet and kill Saal.
The Star Blasters are capable of creating an energy barrier by linking to adjacent ships. The Star Blasters also have tractor beams capable of incapacitating criminals, and can also fire a red colored beam to destroy hostile ships.