The burst fire tube allows more than one torpedo to be launched simultaneously.

Type 1: The type 1 model can load and fire a cluster of four photons every 2.85 seconds. The Type 1 was fitted to the original Ambassador class as well as various starbases and space stations.

Type 2: Designed for larger vessels, including refitted Ambassador class vessels, the type 2 burst fire torpedo tube can fire up to eight photons every five seconds, giving a greater overall rate of fire.

Type 3: Developed to arm the Galaxy and Nebula classes, this tube can fire up to ten torpedoes every five seconds, a 25% increase over the Type 2.

Type 4: The type 4 is the most powerful photon torpedo tube currently in service with the Federation. It can fire a burst of twelve torpedoes every five seconds and currently is only fitted to the Sovereign and Excalibur class battleships.