How to get Lex Prime Blueprint in Warframe?

Lex 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 Lex Prime Blueprint

• Lith P9 (Common)
• Neo V9 (Uncommon)
• Axi A2 (Uncommon) - Exclusive to the Void Trader (Baro Ki'Teer)
• Axi T12 (Common)
• Lith A3 (Common) - Vaulted
• Lith B11 (Common) - Vaulted
• Lith C3 (Common) - Vaulted
• Lith D6 (Uncommon) - Vaulted
• Lith K11 (Uncommon) - Vaulted
• Lith N11 (Common) - Vaulted
• Lith P5 (Common) - Vaulted
• Lith R2 (Common) - Vaulted
• Lith S4 (Common) - Vaulted
• Lith S7 (Common) - Vaulted
• Lith T11 (Uncommon) - Vaulted
• Lith V5 (Common) - Vaulted
• Meso C3 (Common) - Vaulted
• Meso D1 (Common) - Vaulted
• Meso D4 (Uncommon) - Vaulted
• Meso H7 (Common) - Vaulted
• Meso M4 (Common) - Vaulted
• Meso N15 (Uncommon) - Vaulted
• Meso O6 (Uncommon) - Vaulted
• Meso P3 (Common) - Vaulted
• Neo A11 (Common) - Vaulted
• Neo A9 (Uncommon) - Vaulted
• Neo C4 (Common) - Vaulted
• Neo E3 (Uncommon) - Vaulted
• Neo N2 (Common) - Vaulted
• Neo P3 (Common) - Vaulted
• Neo S10 (Common) - Vaulted
• Neo Z2 (Common) - Vaulted
• Axi A9 (Common) - Vaulted
• Axi D3 (Common) - Vaulted
• Axi F1 (Common) - Vaulted
• Axi G3 (Common) - Vaulted
• Axi O4 (Common) - Vaulted
• Axi S14 (Common) - Vaulted