Mem Chip

Mem Chips are an advanced technology used for holding the all the data of an individual's brain.

Background
In 2276, Horace Pinkerton stole a mem chip from Vault 112, and used it in his mind wipe of A3-21, making A3-21 to believe it was a human named Harkness.

Appearances
Mem chips are mentioned only in Fallout 3.