ZTE EXGB1a 2-Port 10GE IP Interface Board. A high-capacity network interface and service line card engineered for the ZTE ZXUR 9000 controller series framework. Equipped with 2x 10 Gigabit Ethernet ($2 \times 10\text{GbE}$) ports, it provides high-throughput IP packet processing, core backhaul distribution, and heavy-duty signaling multiplexing for mobile voice and data traffic routing.