The Storage Module is a 27-slot steel cabinet whose defining trick is merging with its neighbours. Place two modules face to face and they become one 54-slot warehouse behind a single window; three modules give 81 slots, four give 108, and that is the cap. Right-click any module of the build and the window shows the entire warehouse rather than the 27 slots of the block you clicked. Only face-to-face contact merges — edge and corner contact never does — so two separate warehouses can stand flush against each other, and a fifth module adds nothing beyond the 108-slot ceiling. The Storage Module needs no energy and no redstone, accepts any build shape, and works the same on Fabric and NeoForge in Minecraft 26.2.

A Storage Module is crafted from four iron plates in a cross around a vanilla chest — deliberately cheap, because growing the warehouse is a consumable, not a milestone. Items physically sit in the module they were put into: breaking a module drops only its own contents, and breaking one in the middle of a build splits the warehouse while the detached modules keep their items in place. Item pipes can fill and empty the finished warehouse from outside, and the Assembler can draw its materials straight from a cluster like this. In Ala Industrial's storage line the module warehouse's 108 slots sit above the Gold Chest's 54, though each chest still delivers its whole capacity in one block.