Port - make payment for extra port?

Or this could be typical nonsense from offshore sales. You can have additional coaxial outlets, but these are meant for TV boxes, not so that you can move the hub around the house. Multiple splitting like this can cause more problems than it solves so is not recommended. Far better to leave the hub where it is & install Ethernet distribution as described in the posts above. Most TV antenna contractors will do Ethernet distribution jobs if you don’t want to tackle it yourself.