Unlike previous generations of video processors, the H series is customized for your specific project. If you only need 1 HDMI 2.0 input, that’s all you need to pay for. If your requirements change and you need to add a 2nd input, the card can easily be added later.
From a reliability standpoint, being able to keep extra input and output cards is a game changer.
For most customers, the H2 is perfect as it can support up to 2 output cards (40 ethernet ports or 36 ethernet + 4 fiber) and 3 input cards. With 3 dual HDMI 2.0 input cards you could have 6 4K input sources!