The maximum resolution for the USBC-MSTH2 will depend upon the capabilities of the computer it is connected to. Most modern laptops that support USB-C DisplayPort Alt Mode should support two displays. However, the maximum resolution will depend on the supported DP version. You may have to research some technical specifications for your laptop to see exactly what version of DisplayPort your computer supports. DisplayPort 1.2 should allow for two 1080P displays to be connected. DisplayPort 1.4 should allow for two 4K displays to be connected. If you're unsure or can't find the appropriate technical specifications for the version of DisplayPort your computer supports, you may want to contact the computer manufacturer support team for more detailed information.