What is the max resolution/refresh rate that the HDMI port is capable of? John December 01, 2019 02:52 Updated Follow A. The max resolution that the Pro Hub with Ethernet HDMI's port is 4K at 30Hz. Related articles What is the speed of the Ethernet port on the Type-C Pro Hub with Ethernet? Will this Type-C Multimedia Adapter support 1440p @ 60hz if you are using two monitors? Fixing Ethernet Issues Can the Type-C port be used to output video or data transfer? What is the max pass-through wattage for the Type-C Port? Comments 0 comments Please sign in to leave a comment.