URMC8 8 Channel USB Relay Module is great for controlling your devices through USB without any USB protocol knowledge. This modules plugs in to your design seamless. Individual relay can be controlled by simple commands.
Features
8 on board 12V SPDT Relays.
7A Maximum Switching Current.
USB interface with CDC support. As easy as using a serial port, no USB knowledge required.
Relay contacts available on easy to access screw terminals.
Digital circuitry can be powered from USB or external power supply.
Can be controlled by using standard serial console applications or custom applications.