Cisco 25GBase-SL SFP28 Module for MMF

Unlock scalable, high-performance Ethernet connectivity in your data center with the Cisco 25GBASE SFP28 Module for Multimode Fiber (MMF). Built on the trusted SFP28 form factor, this transceiver delivers robust 25 Gigabit Ethernet throughput while prioritizing density, efficiency, and reliability. It is purpose-built for modern data-center architectures and high-performance computing environments, enabling enterprises to upgrade from legacy 1G/10G links without sacrificing port density or network simplicity. The MMF-oriented design provides a cost-effective path to higher bandwidth, leveraging existing fiber infrastructure and minimizing the need for extensive cabling changes. Designed to integrate seamlessly with Cisco switches and a broad range of 25GBASE-SFP28-capable devices, this module supports rapid deployment, straightforward management, and consistent performance across enterprise, edge, and HPC workloads. Whether you are building out a leaf-spine fabric, accelerating server-to-storage traffic, or expanding capacity in a hyper-converged environment, the Cisco 25GBase-SL SFP28 MMF module is engineered to deliver reliable, scalable connectivity with Cisco-grade reliability.

• High-density 25 Gbps connectivity in a compact SFP28 form factor: This transceiver packs 25GBASE Ethernet performance into a small, hot-swappable module, enabling you to maximize port density on your switches and routers while simplifying cabling and layout. Designed for multimode fiber networks, it supports scalable upgrades from legacy 1G/10G links without overhauling your fiber plant, helping data centers achieve higher throughput with fewer components. The SFP28 footprint mirrors industry standards, ensuring broad compatibility with Cisco and non-Cisco devices that accept 25GBASE SFP28 optics, which is ideal for heterogeneous network environments and evolving data-center architectures.
• Low power consumption engineered for scale-out data centers: With efficiency at the core, this module is crafted to minimize power consumption per port, reducing cooling requirements and total cost of ownership in dense racks and large-scale deployments. The energy-efficient design supports aggressive growth strategies, allowing you to add more 25G links per switch port or per chassis without dramatically increasing energy usage. This makes it suitable for hyperscale and HPC environments where performance must be matched with economical operation.
• Hot-swappable, Cisco-interoperable module with broad switch compatibility: The SFP28 module is designed for easy insertion and removal, enabling rapid maintenance and upgrades with minimal downtime. It is engineered for interoperability with Cisco networking devices and a wide array of third-party switches and routers that support 25GBASE SFP28 optics, delivering a plug-and-play experience in mixed-vendor data centers. Expect reliable link establishment, stable performance, and consistent behavior across firmware revisions and hardware generations, backed by Cisco’s reliability and support ecosystem.
• Optimized for multimode fiber networks, enabling a smooth upgrade path: Targeted at MMF deployments, the module leverages existing fiber plant to deliver higher bandwidth without the need for extensive fiber replacement. This makes it an attractive option for data centers seeking to scale bandwidth quickly while preserving established cabling infrastructure. It supports standard 25GBASE operation over MMF, enabling efficient server-to-switch and inter-switch connectivity in leaf-spine topologies and HPC clusters where fast, low-latency links are critical.
• Comprehensive management and diagnostics for proactive operations: The module supports standard SFP28 management interfaces and diagnostic capabilities, including digital diagnostic monitoring (DDMI) where available, to provide real-time insight into temperature, voltage, optical power, and other operating parameters. This visibility helps network engineers monitor health, plan maintenance windows, and optimize performance across the data center fabric. With Cisco support and documentation, you can integrate this module with your existing network management tools for streamlined visibility and control.

Technical Details of Cisco 25GBase-SL SFP28 Module for MMF

• Form Factor: SFP28
• Data Rate: 25 Gbps
• Interface Standard: 25GBASE Ethernet
• Fiber Type: Multimode Fiber (MMF)
• Wavelength: Refer to the official data sheet for the exact specification
• Distance/Reach: Depends on MMF grade and 25GBASE variant; see product datasheet for approved link lengths
• Power Consumption: Not specified here; consult the product datasheet for detailed power figures
• Operating Temperature: Commercial-grade ranges; verify exact values in the official documentation
• Connector: LC (typical for MMF transceivers)
• Compatibility: Designed for Cisco devices and broadly compatible with other 25GBASE-SFP28-enabled switches and routers

how to install Cisco 25GBase-SL SFP28 Module for MMF

• Power down the host device if hot-swapping is not supported by your equipment, or follow your vendor’s hot-swap guidelines if it is supported.
• Verify that the correct slot is available and that the device supports 25GBASE-SFP28 optics in that slot.
• Connect your multimode fiber cable to the module’s LC connector, ensuring the fiber polarization and connector cleanliness are maintained for optimal signal integrity.
• Gently align the SFP28 module with the host slot and insert it until it seats securely with a definitive click.
• Power on the device (if required) and verify link status using the device’s management interface or CLI. Confirm that the port negotiates to 25 Gbps and that the link is stable.
• Optionally enable and monitor diagnostic features (DDMI) if supported, and review optics health, temperature, and power consumption to ensure operation within recommended ranges.

Frequently asked questions

• Q: What is the Cisco 25GBase-SL SFP28 Module for MMF? A: It is a 25 Gigabit Ethernet transceiver in the SFP28 form factor designed for multimode fiber, enabling high-speed connectivity in data centers and HPC environments with Cisco interoperability.
• Q: What fiber type does this module use? A: It is designed for multimode fiber (MMF) networks, typically using LC connectors for backbone and access links in data-center deployments.
• Q: Is this module compatible with Cisco switches? A: Yes. It is built to work with Cisco devices that support 25GBASE-SFP28 optics and is generally compatible with a broad range of switches and routers that accept SFP28 transceivers.
• Q: What are common use cases for this module? A: Common use cases include upgrading data-center uplinks and server-to-switch connections, building high-bandwidth leaf-spine fabrics, and accelerating HPC and storage networking where 25 Gbps per link delivers the needed throughput.
• Q: Can I monitor the module’s health and performance? A: Yes. Many 25GBASE-SFP28 modules support digital diagnostic monitoring (DDMI) for real-time insight into parameters such as temperature, voltage, and optical power, which can be integrated with standard management tools.
• Q: How do I replace or remove the module? A: Power down the device if required by your hardware guidelines, release the module latch, and carefully pull the module straight out. Align the replacement module with the slot and insert firmly until it seats. Reconnect fiber as needed and verify link status.