Keep high-speed links stable across distance with a TAA-compliant 100GBASE-LR4 QSFP28 transceiver designed for Gigamon Systems Q28-503 compatibility. This AddOn Networks optic is built for enterprise environments that need dependable 100 GbE transport over single-mode fiber without changing the surrounding network design. The LR4 optical standard is a strong fit for long-reach applications where short-range modules fall short. With an LC duplex connector and 1304.5 nm to 1317.5 nm wavelength range, this transceiver is suited to structured fiber plant, data center interconnects, and aggregation paths that must preserve throughput over extended distances. Its QSFP28 form factor supports modern 100 GbE infrastructure while keeping deployment straightforward for teams standardizing on compatible optics. For procurement teams, the value is in compatibility and reach. For infrastructure teams, it is in predictable performance and a clean fit into existing 100GBASE-LR4 designs. When the link matters and the cost of downtime is high, a qualified compatible optic helps keep the network moving without overbuying capacity you do not need.