
StarTech.com SFP-25G-SR-S-C-ST 25Gbps SR SFP28 Transceiver Cisco Compatible
The StarTech.com SFP-25G-SR-S-C-ST is a Cisco-compatible 25GBASE-SR SFP28 optical transceiver, engineered to deliver reliable 25 Gbps connectivity over multimode fiber for distances up to 100 meters.
- 25Gbps Throughput: Ensures rapid data transfer for bandwidth-intensive applications, preventing network bottlenecks and supporting high-performance computing.
- Cisco Compatibility: Guarantees seamless integration and reliable operation with existing Cisco switches and routers, simplifying deployment and reducing compatibility risks.
- Multimode Fiber Support: Extends high-speed network links up to 100 meters over LC-terminated MMF, ideal for short-reach data center and campus interconnects.
- Digital Diagnostics Monitoring: Provides real-time insights into transceiver performance, enabling proactive troubleshooting and ensuring consistent network uptime.
Product Overview
Product Overview
The StarTech.com SFP-25G-SR-S-C-ST is a purpose-built 25GBASE-SR SFP28 optical transceiver, delivering a maximum data transfer rate of 25780 Mbit/s over multimode fiber with an LC connector. This module is specifically programmed and tested to be a direct equivalent to Cisco SFP-25G-SR-S, ensuring frictionless integration into existing Cisco network environments.
Designed for short-reach applications, this transceiver supports distances up to 100 meters and adheres to IEEE 802.3cc networking standards for 25GBASE Ethernet. Its Digital Diagnostics Monitoring (DDM) capability provides critical real-time performance data, enabling IT teams to maintain optimal network health and proactively address potential issues.
- Core Functionality: Delivers 25Gbps data transfer rates, supporting high-bandwidth applications and ensuring rapid data flow across your network infrastructure.
- Cisco Ecosystem Integration: Engineered for direct compatibility with Cisco switches and routers, guaranteeing reliable performance and simplifying network expansion.
- Extended Reach: Provides connectivity up to 100 meters over multimode fiber, suitable for interconnecting racks within a data center or linking devices in a large facility.
- Proactive Network Management: Features Digital Diagnostics Monitoring (DDM) to track transceiver health, enabling early detection of performance degradation and reducing potential downtime.
- Operational Value: Offers a Mean Time Between Failures (MTBF) of over 4 million hours, ensuring long-term reliability and minimizing the total cost of ownership for network components.
This SFP28 transceiver is an essential component for businesses seeking to upgrade or expand their 25GbE network infrastructure with proven compatibility and dependable performance.
Technical Specifications
1Performance & Business Impact
2Connectivity & I/O
3Physical & Environmental
4Lifecycle, Warranty & Compliance
Full Specifications
Power1
Performance12
Features3
Weight & dimensions3
Certificates1
Packaging content1
Sustainability1
Operational conditions1
Packaging data1
Logistics data1
Downloads1
What This Solves
High-Speed Data Center Interconnects
Modern data centers require rapid data exchange between servers, storage, and network devices within racks and across short distances. This SFP28 transceiver provides a dedicated 25Gbps link, ensuring low-latency and high-bandwidth communication. It enables efficient virtualization, rapid data backup, and support for demanding applications like AI/ML workloads or large database transactions, preventing performance bottlenecks.
Data center operators, co-location facilities, enterprise infrastructure teams, cloud service providers
Campus Network Backbone Upgrades
As organizations grow, their campus networks need to support increasing user density, IoT devices, and rich media content, demanding higher bandwidth for inter-building links. This module facilitates 25GbE upgrades over existing multimode fiber infrastructure. It ensures that core network segments can handle aggregated traffic from access layers, providing a robust and future-ready backbone for schools, corporate campuses, and large facilities.
University IT departments, large corporate campuses, government agencies, healthcare systems
Cisco Network Expansion & Maintenance
Businesses with existing Cisco networking equipment require compatible components for upgrades, repairs, or new deployments to maintain system integrity and performance. This transceiver is specifically engineered for Cisco compatibility. It allows IT teams to expand their 25GbE network segments with confidence, ensuring seamless interoperability and leveraging existing infrastructure investments without complex configuration or compatibility issues.
SMBs with Cisco networks, mid-market IT departments, network operations centers, facilities management
Key Features
Maximum data transfer rate: 25780 Mbit/s
Enables ultra-fast data transmission, crucial for supporting high-bandwidth applications and preventing network congestion in demanding environments.
Brand compatibility: Cisco Compatible (SFP-25G-SR-S equivalent)
Ensures frictionless integration and reliable operation within existing Cisco networking infrastructures, minimizing deployment time and compatibility risks.
Maximum transfer distance: 100 m over Multimode Fiber (MMF)
Provides flexible short-reach connectivity for interconnecting equipment within data centers, server rooms, or across different floors of a building.
Digital Diagnostics Monitoring (DDM) support
Allows real-time monitoring of transceiver performance metrics, enabling proactive troubleshooting and ensuring consistent network uptime and operational stability.
Mean time between failures (MTBF): 4020594 h
Indicates exceptional long-term reliability and durability, reducing the frequency of hardware failures and minimizing maintenance overhead for IT teams.
Compatible With
Network Switches
Cisco Catalyst, Nexus, Meraki, HPE Aruba, Juniper, Dell EMC switches
Network Routers
Cisco ISR, ASR, Juniper MX, HPE FlexNetwork routers
Servers & Storage
Rack servers, blade servers, network-attached storage (NAS), storage area networks (SAN)
Fiber Optic Cabling
LC-terminated multimode fiber (OM3, OM4), patch panels, fiber distribution units
Frequently Asked Questions
Is this StarTech.com SFP28 transceiver truly compatible with Cisco networking equipment?
Yes, this SFP-25G-SR-S-C-ST module is specifically programmed and tested to be a direct equivalent to Cisco SFP-25G-SR-S, ensuring seamless integration and reliable performance with Cisco switches and routers.
What type of fiber optic cable is required for this 25Gbps SFP28 transceiver?
This transceiver operates over LC-terminated multimode fiber (MMF), supporting OM3 or OM4 cabling for optimal performance up to its maximum transfer distance of 100 meters.
Can this transceiver be used for longer distances than 100 meters?
No, the SFP-25G-SR-S-C-ST is a short-reach (SR) module designed for a maximum transfer distance of 100 meters over multimode fiber. For longer distances, a long-reach (LR) or extended-reach (ER) transceiver would be required.
Does this SFP28 module support Digital Diagnostics Monitoring (DDM)?
Yes, this StarTech.com SFP28 transceiver fully supports Digital Diagnostics Monitoring (DDM), allowing IT administrators to monitor real-time parameters such as optical output power, input power, temperature, and voltage.
Warranty & Returns
Manufacturer Warranty
Lifetime
Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.
Return Policy
Returns subject to manufacturer approval
Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.