Store, access, and transfer items/fluids digitally.
Mods introducing new content into the game.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Related to roboports and logistic robots.
Entities which interact with the circuit network.
More than just chests.
Would it possible to Copy Paste from assembler to item IO bus to set its filters?
Unfortunately, it's not possible.