Use this as the filter for any USB-C hub or dock listing
A hub or dock can be a smart buy only when it clearly explains what the laptop receives, what the monitors can do, how much power reaches the computer, and which ports are data, charging, display, or upstream connections.
- Display method: the listing should explain how the hub sends video to a monitor, not just say it has HDMI or DisplayPort. Check whether it uses regular USB-C video, Thunderbolt/USB4, MST, or DisplayLink.
- Charging output: check how much power actually reaches the laptop. A dock may accept a high-watt charger, but the dock and connected devices use some of that power before the laptop gets the rest.
- Port roles: every USB-C port should be clear. Some are upstream-only, some are data-only, some support power, and some may not carry video.
- OS behavior: Windows and macOS can behave differently, especially with dual displays, MST, DisplayLink, and Mac models with chip-specific display limits.
- Cable path: the upstream USB-C cable and monitor cables must support the speed, power, and display mode the dock claims.