The QSFP-100G-ER4 QSFP28 transceiver supports 100GBASE Ethernet links up to 40km over single-mode fiber using duplex LC connectors. It operates on four LWDM wavelengths with integrated multiplexing and demultiplexing. With a BOX+FPC+PCBA separated design, the module delivers enhanced reliability, sealing, and thermal performance. It complies with IEEE 802.3ba standards and provides digital diagnostics via the I2C interface for real-time monitoring.

This hot-swappable transceiver is ideal for 100G telecom links, data centers, high-performance computing networks, and enterprise core applications.