Cargo ship power coil

Cylindrical unit that is a key component of a cargo ship's power systems. One such device was once owned by the trader Inago. It was traded to (or stolen by) Vala Mal Doran, and eventually found its way into a monastery of the Goa'uld Grannus, where it became an icon for veneration (called the "Ring of Shen-Marak"). There it was protected from overly curious visitors by a small shield. The "relic" drew so many faithful pilgrims that it soon became the only item keeping the sanctuary operating after the Goa'uld's death.

Vala and SG-1 arrived to reclaim the device, but Caius, a smuggler posing as a resident monk, forbade it. Eventually it was traded for the return of his cargo ship, and he departed the monastery.

The device was returned to Inago, who would not reveal why a "worthless" power coil was so valuable to him.

KEY EPISODE

The Ties That Bind - Vala and SG-1 trade Caius's modified cargo ship for the power coil, which they return to Inago in trade for Arlos's mother's necklace.