The CN-12 sensor chip was a necessary component for the Silencer to be fully operational. This CN-12 chip was stored on Nar Shaddaa until the Sith Lord known as Kallig, collaborating with the Cult of the Screaming Blade, acquired it for use in the Silencer's construction, which was overseen by Moff Pyron and intended to be used against Darth Thanaton.