BUYING TOOL

USB-C Dock Dual-Monitor Compatibility Checker

Dock listings are full of traps: USB-C is not always video-capable, dual monitors can be limited by the laptop, and 4K 60Hz is a much bigger load than 1080p. Run the setup first, then compare the dock class that is actually worth buying.

Laptop port
External display support
Monitor setup
Monitor resolution
Refresh rate
Operating system
Desk requirements

Why dock compatibility is messy

USB-C is only the connector shape. The laptop port still needs video output support, the dock must list the monitor count and resolution you want, and the laptop must support that many external displays. Intel describes Thunderbolt 4 as able to connect up to two 4K 60Hz monitors through a compatible dock or adapter, while VESA's DisplayPort Alt Mode explains why some USB-C ports can carry display signals and some cannot.

Read the Thunderbolt dock vs USB-C hub guideCompare Thunderbolt 4 vs Thunderbolt 5 docks