Cisco CPAK-100G-CWDM4 100G CWDM4 2 km SMF | Cisco Optics, Enterprise

Build 100G links that reach beyond the rack without forcing a redesign of the network fabric. Cisco CPAK-100G-CWDM4 delivers CWDM4 connectivity over single-mode fiber with support for distances up to 2 km, making it a practical choice for aggregation, spine, and campus interconnects. This optic is suited to environments where 100G performance is required, but the deployment still needs to stay efficient on fiber count and port usage. CWDM4 gives you a balanced option for medium-reach optical transport, avoiding the cost and complexity of longer-haul alternatives when they are not necessary. The CPAK form factor is designed for Cisco platforms that call for high-density optical modules. That matters when you are scaling uplinks across multiple switches and want a consistent optics strategy that keeps procurement, spares, and operations straightforward. For teams standardizing on Cisco infrastructure, this module offers a clear fit: 100G throughput, single-mode reach, and a deployment profile that supports demanding enterprise traffic without excess overhead.