Extend 100 GbE connectivity beyond the rack with the 100G CWDM4 QSFP28 2 km transceiver. Built for singlemode fiber and an LC duplex connector, it supports up to 2 km of reach for interconnects that need more distance than short-reach optics can provide. That makes it a strong fit for campus backbones, building-to-building links, and data center fabrics that span separate rooms or facilities. CWDM4 optics are often chosen when teams want to preserve port density while avoiding the complexity of more specialized long-haul designs. The QSFP28 form factor keeps the footprint compact, while the 100 GbE signaling rate supports modern aggregation and east-west traffic patterns. For infrastructure teams standardizing on 100G, this module offers a practical balance of reach, density, and deployment simplicity. When the network needs to cross distance without giving up speed, this optic is built for the job.