Cisco CPAK-100G-LR4-RF 100G LR4 Transceiver | SMF, Enterprise Optics — CPAK-100G-LR4-RF

Keep long-reach 100 GbE links online with a refurbished Cisco CPAK-100G-LR4 transceiver built for single-mode fiber deployments up to 10 km. It is a practical fit for backbone, aggregation, and inter-building connections where distance, throughput, and compatibility matter more than marketing claims. For infrastructure teams, the value is straightforward: preserve the performance profile of an existing 100G design while lowering acquisition cost. Refurbished optics are often the right choice when the network architecture is already standardized and the goal is to replace failed modules, stock spares, or support a controlled expansion without paying new-unit pricing. The LR4 reach profile makes this module well suited to campus-to-campus, data center-to-data center, and metro edge links that depend on single-mode fiber. When the requirement is stable 100G transport over distance, this transceiver offers a disciplined, budget-aware path to keep the network moving. Ideal For Connecting data centers over single-mode fiber at 10 km distances Supporting 100G backbone links in enterprise or service-provider networks Replacing a failed long-reach optical module in production Maintaining spare inventory for standardized 100G LR4 deployments Why This Product 1 10 km reach on single-mode fiber 2 100 Gbps transport for backbone links 3 Refurbished pricing for lower acquisition cost 4 Suitable for standardized 100G replacement planning