Hi Kristy -
The ICX in question supports stacking! That means, you can purchase another exact model, and stack them together. It will still work/act as one single device in terms of management, just giving you additional port density.
If you'd like to see a live demo of this, stop by the live stream tomorrow. We will be focusing solely on the ICX installed in homes.
Live Streams can be found here:
Morning Session (11AM MST): https://youtu.be/UFUjqepXO7A
Evening Session (7:30PM MST): https://youtu.be/TNVuHk8e-zM
Stop by, and let me know you're there via chat and I'll show you exactly how to do it.