The 400G (QSFP-DD) Multirate Module MU104014B supports communications network technologies from 10 Mbps to 100 Gbps with dual ports and from 200 Gbps to 400 Gbps with single port. It has the functions and performance required for network I&M tests. In addition, optional test protocols can be selected and added. This excellent expandability helps cut initial capital costs and supports introduction of new functions matching the work schedule.