This is an Ethernet Controller board based on Imatic system which could be compatible with the 16 Channels relay. Using the Controller module and the 16 Channels relay, you could control up to 16 devices remotely on LAN or WAN.
The Ethernet Controller board has integrated the web server, When you are on your office, you just need to open the page on your computer, pad or smartphone, and then control your devices like lights, air-conditioning or refrigerator on your home. Just look the picture below. You can feel free to enjoy the remote controlling of your other devices with the sainsmart Ethernet Controller board.
NOTE: Mac address can not be changed.
This is USB controlled relay opto-isolated board with 16 SPDT relays. You can use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others. It can help you building projects like robotics and home automation.