A regeneration alcove, also known informally as a Borg alcove or simply alcove was a device used by drones for regeneration. When the Borg drones were not needed for immediate tasks, it was used as a drone storage device by the Borg Collective.

An alcove was sized to allow the drone to fit inside. It was sized slightly wider and higher than a drone, with a small raised platform for the drone to stand upon. A green disc large enough to accommodate the drone's head was positioned at the height of the drone, pulsating visually with various patterns, some static and others dynamic, usually green and white in color.

When the Borg drone stepped into the alcove it would stand upright. During the entire regeneration cycle a drone would primarily face outwards from within the alcove. Once positioned into the alcove, a drone's mechanical parts established a connection with the alcove's systems. The alcove then established a connection in one of two ways: either through a port resembling an arm rest onto which a drone would connect its arm, or by means of tubes which connected directly from the wall into various ports in the drone exo-plating.

A Borg drone would enter its regenerative state similar to stasis for a period of time called a regeneration cycle. A regeneration cycle would vary in length based on factors such as: how long it had been since the drone last entered an alcove; what species and age the drone was; was the drone injured and was the drone needed for assignment or task. A typical regeneration cycle took a full 6 hours to complete.

Although during regeneration a drone would enter a mental state similar to that of sleep, it remained far from unconsciousness.