This EtherNet/IP, Modbus TCP, and MD-Link dual port module communication module is an option for variable speed drives of Altivar range. It is equipped with 2 RJ45 connectors. It is compatible with Altivar Machine and Altivar Process drives. It enables integration of your variable speed drive in your process control network. It weighs 20g. VW3A3721 ETHERNET IP/ MODBUS TCP /MD LINK