Extreme Networks SFP28 25GbE 6.2 Miles Transceiver Module

The Extreme Networks 10503 is a SFP28 transceiver module that delivers a sustained 25.78 Gbps link for networks built around the ExtremeCloud E3120 appliance. It plugs into an available SFP28 slot and uses single-mode fiber through an LC connector, allowing you to extend Ethernet 25GBase-ESR connections up to 6.2 miles without sacrificing speed or reliability.

Operating on wavelengths between 1294.53 nm and 1310.19 nm, the module keeps latency low and throughput consistent across long runs. This makes it a practical option for campus backbones, point-to-point links between buildings, and remote data closets where copper cabling cannot reach. Network administrators who need to scale bandwidth quickly will appreciate that the unit installs without complex re-cabling, letting existing single-mode infrastructure handle new 25 GbE demands.

With its precise fit for Extreme Networks hardware, the 10503 helps maintain vendor support and simplifies lifecycle management. Once in place, it provides a dependable upgrade path for organizations that are ready to move beyond 10 GbE and need a cost-effective step toward higher-capacity core or aggregation layers.

• 25.78 Gbps data rate for Ethernet 25GBase-ESR links
• LC interface for single-mode fiber integration
• Supports transmission distances up to 6.2 miles
• Compatible with ExtremeCloud E3120 appliance
• Wavelength range of 1294.53 nm to 1310.19 nm ensures stable optical performance