These things come in handy when you have multiple bases scattered across a map and dont feel like transporting items by raft or dinos.

Only drawback is the amount of items it takes to craft it. E.G.: Black pearls.

I used the pearls I was saving for a motorboat. Placed 2 on opposite sides of the map. Then saved up and placed another near heavy Beaver activity. Now all my resource farming areas are linked sharing the same 50 slot storage inventory.

Takes a few minutes before each box is "ONLINE" and able to link. Before that its just a standard storage box.