Last install; Had UPB lighting, 32 hardwired inputs, 3 keypads, thermostat control, and a voice recordable module hooked to the onboard outputs to trigger 8 custom sounds on demand (including doorbell, etc). and the Ethernet expander.Also there's the 14" can that came with the Elk remotely located to control the garage doors and the 10 sprinkler zones.Wasn't done - still needed much more UPB, and I had the W800RF32 X10 receiver to hook into the Elk that I didn't get to. Just means more for this house.