An enhancement module was a piece of portable computer technology that could be used to provide large amounts of active memory for a tech cube. Together, these two pieces make an optronic data core.

In 2369, with the help of Reginald Barclay, the holographic James Moriarty and Countess Regina Bartholomew were stored in a tech cube equipped with an enhancement module to keep their holodeck program running continuously. The module had enough active memory to provide the characters a lifetime of experiences. (TNG: "Ship in a Bottle")