Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Module for Multimode Fiber, 850nm, 100m
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Key Features Of The SFP-25G-SR-S=
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25 Gbps high-speed Ethernet connectivity
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25GBASE-SR optical standard
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SFP28 compact pluggable form factor
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850 nm wavelength
Cisco 25GBASE-SR SFP28 Optical Module
Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Module
The Cisco SFP-25G-SR-S= is a high-speed 25 Gigabit Ethernet SFP28 optical transceiver designed for short-distance connectivity over multimode fiber. Operating at 850 nm, it provides reliable 25GbE connectivity for data center, enterprise, and high-density network environments.

Cisco SFP-25G-SR-S= Overview
The Cisco SFP-25G-SR-S= is a Cisco 25GBASE-SR SFP28 optical module designed to deliver high-bandwidth Ethernet connectivity using multimode fiber (MMF). With a data rate of up to 25 Gbps and an operating wavelength of 850 nm, this compact transceiver is suitable for short-reach high-speed network links.
The module supports distances of up to 70 meters over OM3 multimode fiber and up to 100 meters over OM4/OM5 multimode fiber, making it suitable for server-to-switch, switch-to-switch, and other data center interconnect applications.
Its compact SFP28 form factor allows high-density deployment in compatible Cisco networking platforms while helping provide efficient use of rack and switch port space.
25 Gbps Maximum Data Rate
850 nm Operating Wavelength
100 m Maximum Reach over OM4/OM5

Key Features
25GBASE-SR
Supports 25 Gigabit Ethernet short-reach optical connectivity.
25 Gbps
Provides high-speed network connectivity for bandwidth-intensive environments.
850 nm
Uses an 850 nm optical wavelength for multimode fiber transmission.
SFP28 Form Factor
Compact pluggable design for compatible high-density network equipment.
Multimode Fiber
Designed for short-distance MMF network links.
Duplex LC
Uses a standard duplex LC optical interface for fiber connectivity.
Up to 100 m
Supports up to 100 m over OM4/OM5 multimode fiber.
Data Center Ready
Suitable for high-density 25GbE data center and enterprise deployments.
Applications
25 Gigabit Ethernet network links
Data center switch-to-switch connectivity
Server-to-switch connections
High-density Ethernet uplinks
Enterprise network infrastructure
Short-distance multimode fiber links
Data center rack connectivity
High-bandwidth network deployments
Installation & Compatibility
The Cisco SFP-25G-SR-S= is designed for use in compatible Cisco networking equipment supporting 25GbE SFP28 interfaces. The module is installed directly into a compatible SFP28 port and connects to the network through a duplex multimode fiber LC connection.
For optimal reach and performance, use compatible multimode fiber cabling such as OM3, OM4, or OM5 according to the required link distance and network architecture.
Important: The Cisco SFP-25G-SR-S= is intended for compatible Cisco 25G SFP28 platforms. Verify host-device compatibility and required FEC configuration before deployment. Actual supported distance can vary depending on the fiber type, host platform, optical conditions, and network configuration.
Why Choose Cisco SFP-25G-SR-S=?
The Cisco SFP-25G-SR-S= provides a compact and efficient solution for organizations requiring high-speed 25 Gigabit Ethernet connectivity over short multimode fiber distances. Its SFP28 form factor enables high port density while its 850 nm 25GBASE-SR design makes it suitable for modern data center and enterprise network infrastructure.
Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Module
```Upgrade compatible network infrastructure with 25GbE multimode fiber connectivity. The Cisco SFP-25G-SR-S= is suitable for short-reach data center and enterprise networking applications requiring high-speed optical connectivity.
| Product Name | Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Module for Multimode Fiber, 850nm, 100m |
|---|---|
| Weight | 0.800000 |
| Maximum Power Load: | Up to 1.2 W |
| Indicator Type: | Digital Optical Monitoring (DOM) |
| Interface | SFP28 |
| Power Source | Host SFP28 Interface |
| Working Environment: | Commercial |
| Power Consumption | Up to 1.2 W |
| Unit Weight (KG): | 0.08 kg |
| Manufacturer | Cisco |
| Color | Silver |
| Country of Origin | United States |
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