The Waveshare Industrial Grade Serial Server is a versatile motherboard designed for personal computers, offering RS232/485 to WiFi and Ethernet connectivity. With a compact size of 157mm in length and 112mm in width, this server provides reliable Modbus support for industrial automation and control systems. Perfect for businesses looking to enhance their communication capabilities, this product allows for seamless integration of serial devices with modern network infrastructure. Please see Amazon listing for more details. New in box. https://amzn.eu/d/fD13JC4
eBay