Lenovo 25GBase-SR SFP28 Transceiver

Upgrade your data center’s network backbone with the Lenovo 25GBase-SR SFP28 Transceiver. Engineered for reliability and compatibility, this high-performance 25 Gigabit Ethernet transceiver delivers fast, scalable uplinks over multimode fiber (MMF) while maintaining seamless interoperability with Lenovo servers, switches, and other SFP28-capable devices. The 25GBase-SR transceiver uses 850 nm laser technology to carry data at 25 Gbps across short-reach MMF links, making it an ideal solution for blade servers, top-of-rack and aggregation layers, and hyper-converged infrastructure. With a compact SFP28 form factor and hot-swappable design, deployments are streamlined, downtime is minimized, and upgrades can proceed without replacing existing cabling or networking hardware. Lenovo’s commitment to enterprise-grade quality means you can rely on consistent performance, robust build quality, and strong long-term support, backed by interoperability with third-party devices that adhere to the 25GBase-SR standard.

Designed to simplify modern network expansion, this transceiver is optimized for data centers that demand dense port configurations and low power consumption without sacrificing performance. It supports the practical realities of today’s networks—quick installation, high-density deployments, and straightforward management. Whether you’re upgrading a server to deliver higher uplink bandwidth, building a scalable fabric for virtualization, or consolidating storage networks, the Lenovo 25GBase-SR SFP28 Transceiver empowers you to connect faster, manage more traffic, and accelerate workloads with confidence.

• High-speed 25G performance on MMF: This transceiver supports 25 Gigabit Ethernet with an 850 nm wavelength optimized for short-reach multimode fiber. It enables fast uplinks between servers, switches, and storage devices, allowing you to scale bandwidth without overhauling your entire network architecture. With a focus on low latency and efficient data transfer, it’s an excellent choice for data centers, campuses, and enterprise networks that require rapid, reliable interconnects.
• Compact SFP28 form factor with plug-and-play deployment: Designed to fit standard SFP28 slots across Lenovo and third-party equipment that supports 25GBase-SR, the transceiver slides into a compatible hot-swappable interface. The compact design simplifies cabinet density, reduces cable clutter, and minimizes maintenance downtime during upgrades or expansions. Its standardized footprint ensures seamless interoperability with compatible switches, routers, and servers that use SFP28 modules.
• Interoperability and broad compatibility: Built to conform to industry standards, the Lenovo 25GBase-SR transceiver works with Lenovo devices and other vendors’ equipment that supports 25GBase-SR over multimode fiber. This broad compatibility helps you build mixed-vendor data fabrics and upgrade older infrastructure without replacing your entire network ecosystem. It’s a practical solution for multi-seller data centers seeking predictable performance and straightforward integration.
• Reliable performance for demanding workloads: The transceiver is designed to sustain high-throughput traffic in virtualization, cloud, and high-performance computing environments. Its robust optical design is tuned for stable BER (bit error rate) and consistent link integrity across active data paths, ensuring reliable data delivery for applications such as real-time analytics, large-scale backups, and rapid database transactions.
• Vendor-supported durability and service: Lenovo stands behind this transceiver with enterprise-grade support and warranty coverage, ensuring long-term availability, firmware compatibility, and field service options. This reliability is particularly valuable for data centers that require predictable maintenance windows, quick replacements, and consistent performance over time, reducing total cost of ownership and safeguarding uptime commitments.

Technical Details of Lenovo 25GBase-SR SFP28 Transceiver

• Data rate: 25 Gbps
• Form factor: SFP28
• Wavelength: 850 nm
• Media type: Multimode fiber (MMF)
• Connector: Duplex LC
• Standard compliance: 25GBASE-SR, SFP28 MSA compatibility
• Operating environment: Enterprise data-center class device designed for reliable operation in standard network environments
• Recommended fiber types: MMF with OM3/OM4 grade for optimal performance and reach
• Compatibility: Lenovo servers and switches; interoperable with other vendors’ devices that support SFP28 25GBase-SR

How to install Lenovo 25GBase-SR SFP28 Transceiver

• Power down or follow hot-swap procedures for the host device as required by your data center policy. If your environment supports hot-swapping, verify that the slot is ready for insertion and that there is no active activity that could be disrupted.
• Handle the transceiver with care, holding it by the metal housing to avoid touching the optical connector or the contacts. Ensure the slot is free of dust and debris before insertion.
• Insert the SFP28 transceiver firmly into the compatible SFP28 slot until it seats fully with a click. Do not force the module; if it does not seat, remove and inspect for obstructions or misalignment.
• Connect the multimode fiber with LC duplex connectors to the transceiver, using the appropriate MMF grade (OM3/OM4 recommended). Gently mate the connectors and secure the fiber cabling to maintain proper routing and avoid bending beyond recommended radii.
• Power on the device (if required) and verify link status on the switch or host port. Use standard network management tools to confirm recognition of the transceiver, confirm negotiated link speed at 25 Gbps, and test basic connectivity with a ping or throughput test. If necessary, update firmware or drivers to ensure optimal compatibility with your hardware ecosystem.

Frequently asked questions

• Q: What is the Lenovo 25GBase-SR SFP28 Transceiver best used for? A: It is designed for data centers and enterprise networks needing high-bandwidth, short-reach fiber connections. It enables 25 Gbps links over multimode fiber, ideal for server-to-switch uplinks, top-of-rack interconnects, and storage networking in modern virtualization and cloud environments.
• Q: Is this transceiver compatible with non-Lenovo equipment? A: Yes, as long as the device supports SFP28 25GBase-SR modules and multimode fiber with a compatible LC duplex interface. Interoperability with third-party devices is common in modern data centers, but always verify vendor-specific compatibility and firmware support when mixing equipment from different vendors.
• Q: Which fiber type should I use? A: Multimode fiber is required for 25GBase-SR. OM3 and OM4 grade MMF is recommended for better reach and performance. Use the appropriate fiber termination and ensure proper connector cleanliness and handling to maintain link integrity.
• Q: Can I upgrade from a lower-speed transceiver to 25GBase-SR without changing cables? A: In many cases, yes, you can upgrade to 25GBase-SR without changing fiber cables if your existing MMF run meets the physical and optical requirements. However, confirm that your switches, servers, and firmware support 25GBase-SR and that the link budgets align for the new speed.
• Q: What kind of support does Lenovo offer for this transceiver? A: Lenovo provides enterprise-grade support, warranty options, and compatibility assurance within Lenovo’s ecosystem. For mixed-vendor deployments, standard support practices apply, and firmware and compatibility updates may be required to ensure consistent performance across all devices in the fabric.