Penal Facility H-3

Penal Facility H-3 is a prison complex on Cybertron from the Generation 1 continuity family.

Penal Facility H-3, nicknamed the Rig, is a prison complex within the Kaon jurisdiction.

Fiction

IDW continuity

When the revolt at Mining Outpost C-12 had been beaten down, it was decided the surviving miners would be put on transport to Penal Facility H-3. Since the miners hijacked the transport ship, they never got there. Megatron Origin #1