Konnoria V was a planet located somewhere in the space of the galaxy's Alpha or Beta Quadrants, the fifth planet in orbit of the Konnoria star system. Konnoria V was notorious for it's brutal dilithium mines, which were comparable to the Nazi death camps of Earth.
In the year 2370, Julian Bashir's away team discovered a Cardassian slave labor camp on Davonia. He thought it was very much like the mines of Konnoria V. (DS9 novel: Devil in the Sky)