Introducing the Honeywell Ethernet Interface, specifically designed to fit the Honeywell M-Class. This lightweight and efficient interface is the perfect solution for integrating your Honeywell system with Ethernet connectivity. Manufactured by Honeywell, this product, with the original part number OPT78-2724-03, is a reliable and high-quality choice for your networking needs. Upgrade your system with this top-notch Ethernet interface for seamless connectivity and optimal performance.