How to get Caliban Prime Blueprint in Warframe?

Caliban Prime Blueprint is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Caliban Prime Blueprint

Other items:
Caliban Prime Chassis Blueprint - Caliban Prime Systems Blueprint - Caliban Prime Neuroptics Blueprint
Caliban Cranion Helmet Blueprint - Caliban Neuroptics Blueprint - Caliban Systems Blueprint