Keep short-reach 100G links moving with a QSFP28 SR4 transceiver designed for high-density Ethernet environments. The AddOn Networks AL-QSFP-100G-SR4-AO is built for infrastructure teams that need a compatible optical module for switch interconnects, aggregation links, and structured multi-mode fiber deployments. Its QSFP28 interface aligns with modern 100 Gigabit Ethernet ports, while the MPO connector supports parallel optics commonly used in dense data center cabling. This module is a practical choice when you need to maintain production performance without overbuying capacity or replacing entire switch paths. SR4 optics are well suited to short-reach links inside racks, across rows, or between adjacent network enclosures where multi-mode fiber is already in place. For procurement teams, it offers a disciplined way to source a compatible replacement optic that matches the operational profile of enterprise switching. Choose this module when uptime, fit, and link consistency matter more than generic alternatives. It is designed for teams that want a precise optical match for 100G infrastructure, not a compromise.