DOT-7s were a type of worker robot in operation in the 2250s aboard Federation starships like the USS Enterprise. They were distinguished by a vaguely humanoid silhouette with a head and robotic manipulator arms, and, though they lacked legs, they possessed four maneuvering thrusters on their backs.

DOT-7s were stationed in engineering aboard the Enterprise. Capable of anti-grav flight, the DOT-7s maneuvered between engineering levels performing tasks such as welding. (ST: "Ask Not")

During the Battle near Xahea, several DOT-7s were deployed after an undetonated torpedo fired by a Section 31 ship became lodged in the Enterprise's forward section. (DIS: "Such Sweet Sorrow, Part 2")

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