Vex Transponder is a quest step in Destiny 2: Black Armory.
Part of the Izanami Forge Quest.
"This curious Vex device is receiving a signal with a signature close to the one used by the Black Armory."
Defeat Vex anywhere on Nessus to track the signal's origin.
- Vex Defeated: 100
- On Nessus, you now need to find and destroy 100 Vex.
- Lost Sectors, like the Orrery are recommended because they will allow you to quickly enter and leave after destroying a large number of Vex.
- This will get you the next step, Transponder Signal Lost.
- The end reward of the quest chain is Izanami Forge.