WarframeAlchemyLab ES
How to farm it? See the full plan Part of: Exilus Warframe Adapter

Where it drops

Duviri / Endless: Tier 1 (Hard) Hard 4.43% Duviri / Endless: Tier 3 (Hard) Hard 4.43% Duviri / Endless: Tier 4 (Hard) Hard 4.43%

FAQ

Where does Exilus Warframe Adapter Blueprint drop?

The best source of Exilus Warframe Adapter Blueprint is Endless: Tier 1 (Hard) (Duviri), at 4.43% per reward according to Digital Extremes' official drop tables.

Can Exilus Warframe Adapter Blueprint be traded?

No, Exilus Warframe Adapter Blueprint cannot be traded: you have to earn it in-game.