A transporter module was a part of the transporter system aboard Federation starships such as the Intrepid-class. A component found within a transporter module was a quantum resonance oscillator.
In 2372, Seska and the Kazon-Nistrim mounted a raid on the USS Voyager and stole a transporter module. With Seska's help, they were able to integrate the module into Maje Culluh's Kazon raider. Seska hoped that the module would allow her to rally the disparate Kazon sects against Voyager, but the module was destroyed by Chakotay. (VOY: "Maneuvers")