Lenovo 25GBase-LR SFP28 Transceiver

Elevate your data center performance with the Lenovo 25GBase-LR SFP28 Transceiver, a purpose-built module designed for high-speed 25 Gigabit Ethernet over single-mode fiber. This compact, hot-swappable transceiver fits into standard SFP28 slots on switches, routers, and network interface cards, delivering a robust 25G link that scales your network capacity without compromising reliability or flexibility. Built to Lenovo’s exacting standards, this transceiver is engineered for seamless interoperability, consistent performance, and long-term reliability in demanding enterprise and data networking deployments.

Designed to simplify modernization and future-proof your infrastructure, the Lenovo 25GBase-LR SFP28 Transceiver delivers 25GbE connectivity over single-mode fiber with precision and efficiency. The 1310 nm wavelength minimizes dispersion and maintains signal integrity across longer distances, making it ideal for data center backbones, interconnects between remote sites, and campus networks. Whether you’re upgrading a core switch, expanding a storage area network, or establishing efficient intra-data center links, this transceiver provides a dependable, scalable solution that aligns with industry standards and Lenovo’s reputation for quality and compatibility.

Key advantages go beyond raw speed. The Lenovo 25GBase-LR SFP28 Transceiver is designed for plug-and-play deployment, reducing downtime during upgrades and migration projects. Its LC duplex connector aligns with common fiber installations, while the SFP28 form factor ensures compatibility with a broad ecosystem of switches and routers that support 25GBASE-LR optics. The module’s emphasis on efficiency means you can achieve high throughput without excessive power consumption, helping data centers meet energy goals while maintaining peak performance. In environments where uptime and predictive maintenance are critical, the module’s digital diagnostics monitoring capability provides visibility into link health and performance metrics, empowering proactive troubleshooting and streamlined operations.

In addition to raw performance, this Lenovo transceiver brings reliability and consistency to heterogeneous environments. It is designed to operate across a wide range of network equipment, enabling seamless integration into mixed vendors’ gear without sacrificing speed or stability. For IT teams managing multiple data centers, the Lenovo 25GBase-LR SFP28 Transceiver offers a common platform for consistent 25G connectivity, simplifying firmware strategies, spare part inventories, and cross-vendor interoperability. The result is a resilient, scalable networking foundation that supports modern workloads—virtualization, cloud services, real-time analytics, and large-scale deployments—while preserving the simplicity and predictability you expect from enterprise-grade hardware.

• High-speed 25GBase-LR performance: Delivers a full 25 gigabits per second of data throughput, ideal for modern data centers, high-traffic server connections, and storage-heavy networks that demand low latency and high bandwidth on backbone links.
• Single-mode fiber with 1310 nm wavelength: Optimized for long-distance transmission with minimal signal degradation, enabling reliable connectivity up to the typical LR reach while maintaining excellent signal integrity over longer spans.
• Compact SFP28 form factor with LC duplex connector: Fits into standard SFP28 slots on switches and routers, providing easy replacement, reduced rack space, and simple cross-vendor integration for mixed environments.
• Digital diagnostics monitoring (DDM/DDMI) support: Real-time visibility into optical power, temperature, and other critical parameters, allowing proactive maintenance, faster fault isolation, and improved uptime.
• Broad compatibility and Lenovo reliability: Engineered for interoperability with a wide range of 25G-enabled devices while adhering to Lenovo’s quality and performance standards, making it a dependable choice for data centers, campuses, and enterprise networks.

Technical Details of Lenovo 25GBase-LR SFP28 Transceiver

• Data Rate: 25.0 Gbps
• Transceiver Type: SFP28 LR
• Standard: 25GBASE-LR (IEEE 802.3 compatible)
• Wavelength: 1310 nm
• Fiber Type: Single-mode fiber (SMF)
• Connector: 1 x LC duplex
• Reach: Up to 10 kilometers depending on fiber quality and link design
• Diagnostics: Digital Diagnostics Monitoring (DDM/DDMI) supported for real-time link health and performance data
• Applications: Data Networking, Optical Network, core/aggregation layers, inter-data center links

How to install Lenovo 25GBase-LR SFP28 Transceiver

• Power down the networking device or ensure maintenance windows comply with your change-control policy before installing the transceiver.
• Insert the Lenovo 25GBase-LR SFP28 Transceiver into an available SFP28 slot until it locks in place with a positive click.
• Connect a compatible LC duplex single-mode fiber patch cable to the transceiver’s LC connector and route the link to the corresponding optical port.
• Power up the device and verify the transceiver is recognized by the chassis or switch. Check the link status and ensure the 25G speed is active on the interface.
• Use the network device’s management interface or CLI to confirm link quality, perform a basic throughput test, and monitor DDMI readings for ongoing health checks.

Frequently asked questions

• Q: What is the Lenovo 25GBase-LR SFP28 Transceiver used for? A: It provides high-speed 25 Gbps Ethernet connectivity over single-mode fiber, suitable for data center backbones, inter-data center links, and enterprise networks requiring long-reach, reliable links.
• Q: What fiber type and connectors does it use? A: It uses single-mode fiber with a duplex LC connector for standard, long-distance optical links.
• Q: What is the maximum reach of this transceiver? A: The typical reach is up to 10 kilometers on appropriate SMF cabling, depending on fiber quality and installation conditions.
• Q: Does it support Digital Diagnostics Monitoring (DDM/DDMI)? A: Yes. DDM/DDMI provides real-time status on optical power, temperature, and other critical parameters to help with proactive maintenance and quick troubleshooting.
• Q: Is this transceiver compatible with mixed-vendor equipment? A: Lenovo designs this module to maintain interoperability across a broad ecosystem of 25G-enabled devices, but always verify compatibility with specific switch or router firmware versions and vendor guidelines.
• Q: How do I know if it’s working correctly after installation? A: Confirm the interface shows 25G link speed, check the link LED indicators, review DDMI readings if available, and perform a quick throughput test to ensure traffic flows as expected.
• Q: Can I replace existing 25GBASE-LR modules with this Lenovo transceiver? A: In most cases, yes, provided the device supports SFP28 25GBASE-LR optics and the firmware is compatible; consult your equipment’s interoperability notes for any vendor-specific caveats.
• Q: What should I consider for downtime and maintenance planning? A: Schedule during a maintenance window, ensure spare transceivers are available, and verify that replacement procedures align with your data center’s change-control policies to minimize service disruption.