Ethernet Relay Controller for Windows, Linux, Mac, and any Programming Language
PoE Ethernet Relay Module
Amazon.com: Coolwell 8-Ch Ethernet Relay Module with PoE Port Communication Modbus RTU/Modbus TCP Protocol Cover with Industrial Grade Rail-Mount Case : Industrial & Scientific
Ethernet Relays from NCD - Proven Reliability for Over 20 Years
Ethernet Relay Card 5 Channels - SNMP, HTTP/XML, Real Time Clock, DIN BOX - Denkovi A E LTD