USB-C Hubs Emerge as a Smaller, Cheaper Alternative to Docking Stations, With Trade-offs
Engadget reports that USB-C hubs can replace docking stations for many laptop users, offering more ports in a smaller, lighter package, but power and bandwidth limits rule out some demanding peripherals.
The report notes that the colloquial definitions of "hub" and "dock" have blurred over the years, but two differences remain. Docking stations are generally larger, carry more ports and are built around permanently transforming a desk setup. USB-C hubs are smaller, lighter and offer fewer ports, and they are designed for use on the move.
Power supply is the other main distinction. Docking stations can plug directly into a wall outlet, which lets them deliver power to external devices. Hubs, by contrast, tend to draw their power from the device they are plugged into. Engadget says externally powered hubs exist but are not the norm, and that some USB-C hubs support power delivery passthrough for charging accessories, though charging can be slow unless the hub is a specialized model.
The most common problems with hubs follow from those two design choices. A dock has its own dedicated bandwidth, while a hub splits the bandwidth of the laptop port it occupies, and most hubs also rely on the host computer for power. Engadget reports that the combination means not every device will run well on a hub. External hard drives, particularly solid-state drives, can struggle to obtain enough power and bandwidth, while the high-speed data that HD webcams and external GPUs require makes them a nonstarter. The same bandwidth constraint is why most USB-C hubs support only one external monitor.
Because they are built for portability, hubs are also more exposed to everyday wear and tear than a stationary dock. Engadget cites debris buildup inside the connectors and internal damage from drops as risks, and says a hub may have a shorter lifespan than a dock depending on how much it travels and how roughly it is handled.
Even so, the report concludes that USB-C hubs remain a strong option for users who simply want more ports, and that their portability gives them an edge over docking stations for anyone who is not trying to connect a large number of power-hungry peripherals.