Unit Storage II
The Unit Storage II is a storage building which allows for up to 360 pieces of unit product to be stored. It acts as a simple buffer, a delivery and return point for Construction Parts (and their variants) with trucks, and an offloading destination for the Trading Dock, Shipyard, and Unit Modules in Cargo Depots.
They also have 2 input and 2 output connection points for Flat Conveyors and can utilize all 4 simultaneously if so desired. Like many buildings, when the outputs are directly connected to the inputs of another (without conveyors), they transfer items at speeds far exceeding that of even two Flat Conveyor II's.