Support high-speed switching fabrics with a QSFP28 transceiver built for short-reach 100 GbE links. The AddOn QSFP-100G-SR4-AR-AO is hot-swappable, making it easier to replace optics in live environments without interrupting adjacent services or opening a maintenance-heavy workflow. Designed for optical network and data networking applications, this module pairs 100 Gigabit Ethernet support with an MPO connector and multi-mode fiber mode. That combination fits dense data center topologies where short-reach links need to be dependable, easy to stock, and quick to service. For teams standardizing on 100G infrastructure, SR4 optics are a practical choice for switch-to-switch and rack-scale connectivity. The value is operational clarity: a qualified AddOn transceiver, lifetime warranty coverage, and a replace-in-place design that helps reduce downtime risk. For procurement teams, it is a straightforward way to support production 100 GbE deployments without paying for capabilities the link does not need.