Optical Transceiver 100G QSFP28 ER4 LWDM operats at 1310nm over single-mode fiber, it achieves 80km transmission distance. This allows telecom providers to build extensive backbone networks, interconnecting cities and regions effortlessly. The LWDM technology further optimizes bandwidth utilization, enabling multiple data streams to be transmitted simultaneously. The qsfp28 fiber module can support high-definition video calls, large file transfers, and real-time financial transactions across vast distances. The transceiver's compatibility with the QSFP28 form factor simplifies installation and integration into existing telecom infrastructure, making it a go-to choice for upgrading long-haul networks.