Huawei's StarryLink optical modules for data center networks offer seamless interconnection from GE to 800GE across all scenarios, delivering customers an ultra-reliable, long-distance, and highly secure data center network interconnection experience. The short-distance optical return loss positioning technology enables precise and efficient identification of contaminated or loose optical modules. Provides four 10GE SFP+ optical ports for data access and line-rate switching. The service ports on the card can be used as stack ports. Attributes of a 10GE SFP+ optical port 2. Company High quality ES5D21X04S01 Huawei SFP Module 4 x 10 Gig SFP+ Interface Card from China, China's leading huawei. The ES5D000G4S01 Huawei is a high-performance 4-port optical interface card from Huawei, designed to provide seamless optical connectivity and scalability for enterprise and carrier-class network equipment. Compatible with Huawei S-series modular switches, this card supports Gigabit Ethernet (GE). Huawei offers a comprehensive portfolio of pluggable StarryLink optical modules for data center networks, with various models providing flexible plug-and-play solutions tailored to diverse interface requirements. Non-certified optical or copper modules cannot ensure transmission reliability and may affect service stability.