StarTech.com Cisco SFP-25G-SR-S Compatible SFP28 Module — 25GBASE-SR MMF Transceiver

Upgrade your data center with the StarTech.com Cisco SFP-25G-SR-S Compatible SFP28 Module, a high-performance 25Gbps transceiver designed for short-reach, high-density MMF deployments. Engineered to deliver reliable 25GBASE-SR throughput in Cisco environments, this SFP28 module combines StarTech’s renowned build quality with streamlined interoperability. Featuring LC duplex connectors and a compact SFP28 form factor, it fits neatly into compatible switches, routers, and servers, enabling fast, scalable Ethernet connectivity across rack-to-rack and server-to-network uplinks. With dynamic diagnostics (DDM/DOM) built in, administrators gain real-time insight into link health, temperature, optical power, and other critical metrics—making health checks and troubleshooting quick and precise. The hot-swappable design means you can deploy or replace modules without powering down equipment, keeping downtime to a minimum while expanding your network capacity with confidence.

• Compatibility and interoperability: Specifically designed to be compatible with Cisco SFP-25G-SR-S networks, enabling seamless 25GBASE-SR links in Cisco-based environments with minimal configuration.
• High-performance MMF connectivity: Delivers 25 Gbps throughput over multimode fiber, optimized for short-reach data center links and high-density server-to-switch connections.
• Distance and fiber type: Supports up to 100 meters on multimode fiber (MMF), ideal for rack-to-rack, top-of-rack, and data center interconnects using OM3/OM4-grade MMF cabling.
• Diagnostics and reliability: Includes DDM/DOM technology for real-time monitoring of link status, optical power, temperature, and other vital performance data to simplify monitoring and troubleshooting.
• Easy installation and integration: SFP28 form factor with LC duplex connector; hot-swappable and plug-and-play friendly, designed for straightforward deployment in compatible network equipment without specialized tools.

Technical Details of StarTech.com Cisco SFP-25G-SR-S Compatible SFP28 Module

• Product type: SFP28 transceiver module
• Standard: 25GBASE-SR
• Medium: Multimode fiber (MMF)
• Distance: Up to 100 meters (328 feet) on MMF
• Connector: LC duplex
• DOM/DDM: Yes
• Form factor: SFP28
• Compatibility: Cisco SFP-25G-SR-S environments
• Brand: StarTech.com
• Alert/Diagnostics: Built-in monitoring for link status and diagnostic data

How to install StarTech.com Cisco SFP-25G-SR-S Compatible SFP28 Module

• Prepare the network: Verify that your switch, router, or server has an available SFP28 port capable of 25G operation and that the device supports 25GBASE-SR transceivers.
• Power considerations: If your hardware supports hot-swapping, you may install the module with the system powered on. If not, power down the device following your vendor’s procedures before installation.
• Remove the protective cover: If your module ships with any protective caps on the LC connectors, remove them before installation and keep them handy for future maintenance.
• Insert the module: Align the StarTech SFP28 module with the SFP28 port and gently slide it into the slot until it seats with a secure click. Do not force the module; if it does not seat smoothly, remove and reinsert to ensure proper alignment.
• Connect the fiber: Insert a suitable MMF cable with LC duplex connectors into the module. Use OM3 or OM4 rated fiber for best results, ensuring the transmit and receive fibers are correctly matched to the corresponding ports.
• Verify and monitor: Power on (or confirm) the device detects the module. Use the switch’s interface or management tools to verify link status. Leverage DDM/DOM data from the module to monitor optical power, temperature, and other diagnostics for ongoing health checks.

Frequently asked questions

• Is this module compatible with Cisco devices? Yes. It is specifically designed to be compatible with Cisco SFP-25G-SR-S environments, providing reliable 25GBASE-SR performance in Cisco-based networks while maintaining StarTech’s quality and compatibility standards.
• What type of fiber do I use? Multimode fiber (MMF) is required for 25GBASE-SR operation. Use OM3 or OM4-rated MMF cables to achieve the stated reach, typically up to 100 meters.
• What is the maximum distance supported? The module supports up to 100 meters (328 feet) over MMF, depending on fiber quality and installed transceiver hardware.
• Does it support diagnostics? Yes. The module includes DDM/DOM functionality, enabling real-time monitoring of link status, transmit power, receive power, temperature, and other important parameters.
• Is this module hot-swappable? Yes. The SFP28 module is designed for hot-swapping in compatible devices, allowing installation or replacement without powering down the host equipment (subject to your device’s capabilities).