How to get Nekros Prime Blueprint in Warframe?

Nekros 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 Nekros Prime Blueprint

Other items:
Nekros Shroud Helmet Blueprint - Nekros Systems Blueprint - Nekros Prime Chassis Blueprint
Nekros Raknis Helmet Blueprint - Nekros Prime Neuroptics Blueprint - Nekros Prime Systems Blueprint