I want to introduce a website selling Home Automation build-able prototype products which connects Arduino Uno/Mega, Ethernet Shield, and Relay board. Even though it sells Android App and Home Automation products, it is not possible to figure out information of the seller. There are NoilDomo 16 CH-Series and NoilDomo 4 Channel mini connected with 16 Channel relay. If you look close on the product, it is built to be used by connecting Relay and Network module.
Origina page : http://www.noildomo.com/index.html