The LITTELFUSE CIO-120-MB is a Modbus I/O module engineered for efficient communication in automation systems. This module supports Modbus RTU and TCP protocols, facilitating reliable data transfer. Constructed with high-quality materials, it is designed to withstand industrial conditions. Its compact dimensions allow for easy integration into existing setups. The CIO-120-MB meets relevant compliance standards, ensuring compatibility with a wide range of devices. Perfect for applications that require robust data management, this module enhances operational efficiency.