Vault 96 mainframe lab recording

Vault 96 mainframe lab recording is a holotape in the Fallout 76 update Steel Reign.

Location
The tape can be found at Vault 96, inserted in the Quantum research lab terminal in the mainframe wing.

Behind the scenes
Vault 96's holotapes were first added to the game's files with The Legendary Run update and were later made available with the Steel Reign update.