SFP-25G-iER-S is a 25GBASE-ER SFP28 single-mode optical transceiver module that engineered for long-reach data transmission over duplex LC/UPC connections, delivering robust 25Gbps throughput at a 1310nm wavelength across distances up to 30km with integrated Digital Optical Monitoring support.
Cisco Part Number
SFP-25G-iER-S
Vendor Name
LINK-PP
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1310nm
Max Cable Distance
30km
Connector
Duplex LC
Media
SMF
Transmitter Type
EML
Receiver Type
APD
Receiver Sensitivity
-19dBm
Operating Temperature range
0°C to +70°C
Protocols
MSA Compliant, CPRI, eCPRI
Warranty
5 Years
Key Features of Cisco SFP-25G-iER-S Compatible LINK-PP 25G SFP28
Cisco SFP-25G-iER-S Compatible LINK-PP module is a specialized 25GBASE-ER SFP28 optical transceiver designed for long-distance single-mode fiber deployments. It integrates an advanced laser architecture, dual LC interfacing, and diagnostic feature into a compact hot-pluggable form factor. This module delivers robust throughput and steady signal reliability for demanding metro and enterprise networks.
This 25G SFP28 transceiver module features a highly efficient 1310nm EML transmitter paired with a sensitive APD receiver. This optimal hardware combination ensures strong signal integrity and excellent optical power budgets. It complies fully with SFP28 MSA standards for seamless multi-vendor compatibility.
SFP-25G-iER-S: 25 Gbps Connectivity for Extended-Reach Links
Built to handle next-generation data rates, this module provides a major bandwidth upgrade over standard 10G networks. It delivers full 25Gbps line rates to support data-heavy applications and high-density switch connections. It serves as an ideal solution for scaling backbone infrastructure efficiently.
SFP-25G-iER-S Module with 1310nm Wavelength
Operating at the standard 1310nm wavelength channel, this transceiver minimizes dispersion over single-mode fiber cables. The chosen optical spectrum ensures clean signal transmission through complex fiber routing. It matches perfectly with existing long-haul network infrastructure.
SFP-25G-iER-S Module Supporting 30km Transmission
Engineered for extended-reach capabilities, the module safely spans link distances up to 30km without requiring extra optical amplifiers. This long-range coverage makes it perfect for connecting regional data centers and mobile backhaul sites. It significantly reduces overall hardware deployment costs for mid-range networking.
SFP-25G-iER-S Module with Duplex LC/UPC Interface
Equipped with an industry-standard duplex LC/UPC connector, the module guarantees stable optical alignment and low insertion loss. The precise physical polish ensures minimal back-reflection within the fiber plant. It allows for quick, secure patch cable installations in dense patch panels.
SFP-25G-iER-S Module with DOM for Real-Time Monitoring
Featuring built-in Digital Optical Monitoring (DOM), this transceiver tracks vital metrics like internal temperature, voltage, and optical power. Network administrators can access these real-time diagnostics instantly to simplify troubleshooting and prevent downtime. It ensures long-term operational safety and predictable link health.
Cisco SFP-25G-iER-S Compatible LINK-PP undergoes rigorous global compliance testing to meet strict international standards, including ISO 9001, CE, RoHS, and FCC certifications.
Every transceiver passes through strict signal integrity, environmental stress, and optical performance tests before shipment to ensure stable operation.
SFP-25G-iER-S Quality Certifications
These regulatory approvals verify that the module meets industry safety, environmental protection, and electromagnetic interference requirements.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
SFP-25G-iER-S Certified for Reliable Host-Device Compatibility
The module is fully certified to work seamlessly across a wide range of major enterprise switches, routers, and network servers without configuration issues.
Each transceiver undergoes strict validation processes to guarantee excellent optical integrity and steady network performance under demanding enterprise workloads. To explore our comprehensive testing procedures, please visit the LINK-PP Test Support Center.
Optical Spectrum Test
Verify precise central wavelength and side-mode suppression ratio performance.
Eye Pattern Test
Analyze optical signal transmitter quality and waveform integrity parameters.
Bit Error Rate Test
Measure data transmission accuracy across extended fiber links.
Temperature Test
Confirm stable module operation under variable environmental conditions.
Product Shipping for Cisco SFP-25G-iER-S Compatible LINK-PP 25G SFP28
We provide efficient shipping services to ensure your 25G SFP28 optical transceivers arrive safely and promptly anywhere in the world.
Anti-Static Protective Packaging
Prevent electrostatic discharge damage during storage and transit.
Shock-Resistant Transport Protection
Shield delicate optical components from physical impacts during transit.
Fast Order Processing and Dispatch
Accelerate order handling to ensure swift warehouse departures.
Global Logistics and International Delivery
Ship orders reliably to worldwide destinations via trusted carriers.
Slide the SFP-25G-iER-S optical transceiver module into any SFP28 slot and connect your duplex LC patch cable for instant deployment. It serves as a vital component in modern telecommunications, metro networks, and mid-range data center paths, bridging long-distance communication gaps up to 30km with high efficiency.
SFP-25G-iER-S Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal SFP-25G-iER-S module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Each transceiver is individually sealed inside an anti-static ESD bag with protective rubber dust caps installed over the LC optical ferrules. By
admin on
2025-08-09
A:
Yes, the built-in Digital Optical Monitoring (DOM) lets you view live Tx/Rx power and temperature levels directly in your management software. By
admin on
2025-03-22
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494305
368123
A***n
Philippines
Verified
Purchase
5 .0
2026-02-27
Upgraded our virtualized server cluster interconnects across two remote facilities. The 25G speed jump over standard 10G is night and day, and having 30km capability gives us plenty of optical power margin on older single-mode plant lines. DOM reports live junction temperatures clearly.
Please write comments with more than three
character.
494305
368128
J***s
France
Verified
Purchase
4 .0
2026-02-19
The 25G SFP28 modules connected our 23km single-mode fiber line instantly with clean DOM power readings. The only reason for 4 stars is that international customs held the shipment for three extra days to process paperwork. Everything arrived in good shape, but plan for extra buffer time on international shipping!
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494305
368124
C***n
United Kingdom
Verified
Purchase
4 .0
2025-12-04
These 30km SFP28 modules operate perfectly without generating any port compatibility errors on our switches. The shipping carton was a bit flimsy though, so I would suggest using sturdier packaging for bulk orders.
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character.
494305
368133
S***r
Singapore
Verified
Purchase
5 .0
2025-10-25
Bought a batch of 50 units for server-to-switch leaf-spine connections across our campus facility. The 1310nm SMF transmission handles long fiber spans effortlessly. Mechanical latching mechanism feels sturdy, unlike some flimsy generic alternatives. Digital Optical Monitoring parameters are dead accurate.
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character.
494305
368122
M***s
Thailand
Verified
Purchase
5 .0
2025-07-19
We deployed 100 of these LINK-PP 25G SFP28 30km modules across our core switch stack to bridge two facilities about 22km apart. The 1310nm laser output is steady and optical attenuation is well within margin over OS2 single-mode fiber. DOM monitoring gives accurate temperature and power readings directly in our switch OS CLI. Will definitely reorder for phase 2.
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494305
368125
P***n
South Africa
Verified
Purchase
5 .0
2025-06-11
We thoroughly benchmarked the LINK-PP LS-SM3125-30C transceiver over a 27km single-mode OS2 fiber line between two server rooms. The 1310nm optical output was very clean and stable, maintaining excellent signal strength with plenty of optical budget to spare. The built-in DOM features worked seamlessly, letting us track laser temperature, supply voltage, and Rx/Tx power levels in real time. After running a continuous 72-hour stress test at 25Gbps line rate, we registered zero frame loss or signal degradation. This is a top-tier option for high-bandwidth enterprise connectivity.
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494305
368130
M***g
Indonesia
Verified
Purchase
5 .0
2025-05-08
Solid packaging with individual antistatic shell protection. The metal latch pull-tab feels heavy-duty and operates smoothly. Pinout and internal PCB soldering look top-notch under inspection. We've had zero link drops over 60 days of continuous traffic monitoring. Excellent value for ISP core networks.
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character.
494305
368127
A***s
Mexico
Verified
Purchase
5 .0
2025-04-28
We integrated two dozen LS-SM3125-30C transceivers into our new data center expansion to handle heavy inter-rack traffic. Operating over 19km of OS2 fiber, our received optical power remained well within safety margins with a generous 6dB cushion. The SFF-8472 digital diagnostic monitoring allows our automated software to poll accurate optical stats without manual intervention. Replacing our old, expensive OEM optics with these LINK-PP units cut our hardware upgrade costs drastically without sacrificing a single drop of network performance. A fantastic commercial-grade solution!
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character.
494305
368121
D***t
Republic of Korea
Verified
Purchase
5 .0
2025-03-09
High-quality 25G SFP28 single-mode transceiver. The LC duplex port interface has precise alignment tolerances; no high attenuation spots when connecting standard OS2 patch cables. Highly recommended for network integrators who need dependable 25GbE long-haul performance.
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