|Federation Probes and Space Vehicles Database - Class-5 Intelligence Drone|
|In 2373, two class-5 intelligence drones stationed near the Breen settlement of planet Portas V alerted Benjamin Sisko of the presence of a
Maquis freighter there.
DS9 "For the Uniform"
Small automated sensor plattform. Starfleet often used class-5 drones to monitor spacecraft activity in remote regions without the need to deploy starship assets.
Star Trek Encyclopedia II