Does anyone know if this is different than using powered USB hubs? I imagine attaching an "unpowered" USB hub (no power cord), and then attaching a powered USB

Does anyone know if this is different than using powered USB hubs? I imagine attaching an "unpowered" USB hub (no power cord), and then attaching a powered USB hub to that, and then another powered USB hub to that one (...to infinite and beyond). Same thing, no?