It often works and it is the first thing to remove when there are clicks, dropouts or a device that disappears. A bus-powered interface on a shared unpowered hub is the usual cause of both.
Two things a hub takes away
Power, on a bus-powered interface that expects a full port. And exclusive bandwidth, when a drive or a webcam shares the same controller.
The diagnostic order
Direct port. Different port, preferably on a different side of the machine. Then buffer size and driver. Changing settings before removing the hub wastes an evening.
When it is fine
A powered hub, a self-powered interface and nothing else demanding on the same controller. Plenty of setups run that way for years.
Check your own manual before you plug anything in. Voltage, polarity and current draw differ from model to model, and the manufacturer’s figures take precedence over anything written here. A supply of the wrong polarity can damage a pedal in seconds, phantom power is safe for most microphones but not for every one, and the required voltage is printed next to the socket or stated in the manual — not inferred from a connector that happens to fit.
The questions players ask
Does a powered hub help?
It removes the power question, which is half the problem. Bandwidth sharing with other devices remains, so a direct port is still the safer place for an interface.
What about USB-C adapters?
Adapters and docks add another layer between the interface and the computer. When troubleshooting audio glitches, take them out of the chain before changing any settings.
Last reviewed 2026-08-18