The two models—RG-S6150-24VS8CQ-X and RG-S6150-48VS8CQ-X—serve as both Campus Switch and core Switch, offering 24 or 48×25 GbE service ports plus eight×100 GbE QSFP28 uplinks for seamless aggregation. Featuring Ruijie's highest density 400G data center core switch, our solution utilizes 25/56G SerDes technology evolving to 112G SerDes, facilitating the seamless transition from 400G to 800G and beyond. Both models provide 25 GbE ports that auto-negotiate down to 10 GbE for versatile device. CloudEngine S6750-H series 10GE switches are Huawei's next-generation enterprise-class switches designed for core and aggregation layers, with 48 × 10GE downlink optical ports and 8 × 100GE uplink optical ports. They feature high performance, high reliability, cloud management, and intelligent O&M. Built for performance, scalability, and resilience, these switches form the backbone of modern network. The solutions include equipment deployment, monitoring, network optimization and operational lifecycle management; enabling customers with simple plug and play deployment and operation and maintenance. Some models cannot be downgraded due to component upgrade. Therefore, you are advised to run the display system-software information command (supported in V200R021C00 and later versions) to check the software versions.