Are there any limitations to the HDMI ports from the Table Hub that pass through to the Display Hub?
Rally can pass through two HDMI signals from the computer to drive two displays. If using just one display, connect it to the HDMI 1 jack on the Table Hub.
REGARDING HDMI SIGNALS: Up to one 4K 60fps (YCbCr 4:2:0) on HDMI 1 or two 1080p signals (one at 1080p 60fps and one at 1080p 30fps, which is then upscaled to 60fps) can be carried between the Table Hub and Display Hub. The HDMI signals are a straight pass-through between the hubs.
If a single display is connected and running in 4K resolution on HDMI 1 then HDMI 2 is disabled. To enable HDMI 2 for the second screen, the computer connected to HDMI 1 must be set at 1080p 60fps or lower resolution.