Stalcraft Wiki: Cell-U Container

In-game description (EXBO)

A reinforced version of the second container in the KZK series. During the development of the reinforced version, Research Institute 7 intended to significantly modify the component based on sample No. 3-IA. However, the work was delayed, resulting in the KZK-2U being released without significant improvements.

Quoted from the game's own text in EXBO's public game data. Not written by STALCRAFT Meta.