SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm)
Brand: Cisco | Category: Transceivers & Cables
SKU: SFP-25G-ER-I | Part #: SFP-25G-ER-I | MPN: SFP-25G-ER-I
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About the SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm)
The SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver features a duplex LC connector and SFP28 form factor, delivering compact, hot-pluggable connectivity that integrates seamlessly into standard rack infrastructure without complex cable management overhead.
This Cisco transceiver operates at 25 Gbps over single-mode fiber using the 25GBASE-ER standard, reaching distances up to 40 km at a 1310 nm wavelength. Built on Cisco's cooled DFB laser technology with PIN photodetector architecture, the SFP-25G-ER-I (part number SFP-25G-ER-I) delivers reliable long-distance metropolitan and campus area network performance. The module supports digital optical monitoring per SFF-8472, reporting transmit power, receive power, temperature, voltage, and laser bias current to enable proactive network management. Operating across an industrial-grade temperature range of −40°C to +85°C, the transceiver maintains performance in demanding environments. Duplex operation requires two single-mode fiber strands for simultaneous transmit and receive channels, and the design conforms to SFF-8402 mechanical standards for universal compatibility. The module is fully hot-pluggable, allowing field replacement without powering down equipment.
Network engineers and IT procurement teams standardizing on Cisco infrastructure—particularly those deploying Cisco Nexus series switches and routers equipped with SFP28 ports—rely on extended-reach transceivers like this to cost-effectively bridge multiple sites across metropolitan distances while maintaining native 25 Gbps performance. Enterprise data center architects and service providers benefit from the proven reliability and comprehensive DOM parameters that simplify troubleshooting and network observability. To source the SFP-25G-ER-I for your environment, submit a request for quotation with Omnixon Global today.
Technical Specifications
| Brand | Cisco |
| Category | Transceivers & Cables |
| SKU | SFP-25G-ER-I |
| Part Number | SFP-25G-ER-I |
| Condition | New |
| Form Factor | SFP28 |
| Interface | 25GbE |
| Speed | 25G |
| Manufacturer Part Number | SFP-25G-ER-I |
| Form Factor | SFP28 |
| Data Rate | 25 Gbps |
| Ethernet Standard | 25GBASE-ER |
| Wavelength | 1310 nm |
| Fiber Type | Single-Mode Fiber (SMF) |
| Maximum Reach | 40 km |
| Connector Type | Duplex LC |
| Operating Temperature | -40°C to +85°C (Industrial Grade) |
| Digital Optical Monitoring | Yes, per SFF-8472 |
| Hot-Pluggable | Yes |
| Laser Type | Cooled DFB (Distributed Feedback) |
| Photodetector | PIN |
| Mechanical Standard | SFF-8402 (SFP28) |
| Fiber Strands Required | 2 (Tx / Rx duplex) |
| DOM Parameters | Tx Power, Rx Power, Temperature, Voltage, Laser Bias Current |
| Compatible Platforms | Cisco Nexus series and other Cisco SFP28-equipped switches and routers |
Frequently Asked Questions about SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm)
What does the SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm) do?
The SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm) is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.
What are the headline specs of the SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm)?
Key specifications for the SFP-25G-ER-I 25G SFP28 Extended Reach Transceiver (1310nm): new condition; form factor SFP28; speed 25G; wavelength 1310nm; fiber type Single-mode (SMF); distance 40km (ER); use case DCI/Metro. Manufacturer part number CISCO-SFP-25G-ER-I-25G-SFP28-EXTENDED-REACH-TRANSC. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.