How to get Equinox Prime Blueprint in Warframe?

Equinox 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 Equinox Prime Blueprint

Other items:
Equinox Clisthert Helm Blueprint - Equinox Day Chassis Blueprint - Equinox Night Aspect Blueprint
Equinox Night Neuroptics Blueprint - Equinox Night Chassis Blueprint - Equinox Day Neuroptics Blueprint