How to get Sarofang Prime Blade in Warframe?

Sarofang Prime Blade 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 Sarofang Prime Blade

Other items:
Sarofang Prime Handle - Sarofang Prime Blueprint - Sarofang Blade
Sarofang Handle - Sarofang Blueprint