Gigabit ethernet 100 mbit s qsfp56 120 w cisco nexus 9400 series switches provide high-density 400g solutions in a centralized modular chassis design.The cisco nexus 9400 series centralized modular switches expand the cisco nexus 9000 series portfolio with a new chassis that supports very high port-density 400 gigabit expansion modules.As data centers continue to evolve to support next-generation applications such as machine learning that drive massive growth in intra-data-center traffic bandwidth, data-center operators require compact, high-capacity, and highly efficient switches to upgrade data-center fabrics. They need security, automation, visibility, analytics, and assurance. Equipped to support this next-generation cloud architecture, the cisco nexus 9400 series switches are based on cisco cloud scale technology.The cisco nexus 9400 series centralized modular architecture can scale up to 25.6 Tbps with a combination of field-replaceable switch cards, expansion modules, power supplies, and fans.The cisco nexus 9400 series switch has a new design with a height of 4 rack units and a depth of 24 inches including 8 expansion slots to support 64 ports of 400g, or 128 ports of 200g, or 176 ports of 10 25 50g, with macsec capability on all ports.Furthermore, the chassis architecture supports a supervisor and up to 8 expansion modules, fan tray redundancy with 5 fan trays, and power supply redundancy.The cisco nexus 9400 series supports precision time protocol ptp with class...