
The Extreme Networks 25/10G-SR-SFP100M is a dual-rate 25G/10G SR SFP28 transceiver module designed to deliver high-speed, short-reach fibre connectivity with maximum flexibility. Supporting both 25 Gigabit and 10 Gigabit Ethernet over multimode fibre, this Extreme Networks SFP28 transceiver is ideal for data centres and high-performance enterprise networks transitioning between 10G and 25G infrastructures.
Key Features of Extreme Networks 25/10G-SR-SFP100M Dual-Rate SFP28 Transceiver
Dual-rate support for 25G and 10G Ethernet
Short-reach (SR) multimode fibre transceiver
Up to 100 m reach over OM4 multimode fibre
LC duplex connector with 850 nm wavelength
Fully tested and validated on Extreme Networks platforms
Dual-Rate 25G / 10G Flexibility
The 25/10G-SR-SFP100M supports both 25 Gigabit and 10 Gigabit Ethernet speeds, allowing a single transceiver to be used across different generations of network hardware. This dual-rate capability simplifies upgrades and protects investment as networks evolve.
Optimised for Short-Reach Fibre Links
Designed for short-reach applications, this SR SFP28 transceiver operates over multimode fibre at distances of up to 100 metres. It is well suited to data centre interconnects, top-of-rack switching, and high-density server environments.
Seamless Extreme Networks Compatibility
Extreme Networks pluggable transceivers are engineered and rigorously tested across supported platforms to ensure full compatibility and compliance. Using genuine Extreme Networks optics helps ensure predictable performance and stable operation.
Standards-Based and Reliable Performance
The 25/10G-SR-SFP100M complies with relevant industry standards and multi-source agreements, ensuring interoperability and optical safety. High manufacturing quality and extensive validation contribute to long-term reliability in demanding network environments.
Ideal for Data Centre and Enterprise Networks
With its compact SFP28 form factor, dual-rate operation, and short-reach fibre support, this transceiver is an excellent choice for modern data centres and enterprise networks requiring high bandwidth, flexibility, and efficient port utilisation.

The Extreme Networks 25G-ER-SFP40KM is a high-performance 25GBASE-ER SFP28 transceiver module designed for long-range, high-bandwidth fibre connectivity. Built to support extended-reach 25 Gigabit Ethernet links, this Extreme Networks SFP28 optic delivers reliable performance over single-mode fibre, making it ideal for metro, campus backbone, and data centre interconnect deployments.
Key Features of Extreme Networks 25G ER SFP28 Transceiver
25GBASE-ER SFP28 transceiver module
Supports link distances of up to 40 km
Designed for single-mode fibre (SMF)
Duplex LC connector interface
Forward Error Correction (FEC) required for operation
Extended-Reach 25G Connectivity
The 25G-ER-SFP40KM is engineered for long-distance Ethernet applications, supporting 25 Gigabit links of up to 40 kilometres over a pair of single-mode fibres. This makes it well suited to metro networks, campus backbones, and inter-data-centre connections.
Single-Mode Fibre with Duplex LC Interface
Using standard duplex LC connectors and single-mode fibre, this SFP28 transceiver integrates easily into existing fibre infrastructures while delivering consistent optical performance over extended distances.
Forward Error Correction Support
25GBASE-ER operation requires Forward Error Correction (FEC) to maintain signal integrity across long distances. When enabled on supported Extreme Networks platforms, FEC helps ensure stable, error-free transmission over 40 km links.
Optimised for Extreme Networks Platforms
Extreme Networks pluggable transceivers are rigorously tested across supported hardware to ensure compatibility, compliance, and predictable behaviour. Using genuine Extreme Networks optics helps reduce interoperability risks and simplifies network support.
Ideal for Metro and Backbone Deployments
With its long-reach capability, compact SFP28 form factor, and standards-based design, the 25G-ER-SFP40KM is an excellent choice for organisations requiring high-capacity fibre links across large physical distances.



