The LINK-PP LS-MM854G-S3I is an industrial-grade 4.25G SFP optical transceiver engineered for harsh operating environments ranging from -40°C to +85°C. Utilizing an 850nm VCSEL transmitter and PIN photodiode over multimode fiber, it supports data rates up to 4.25Gbps with a duplex LC interface, low power consumption, and a single +3.3V power supply.
LINK-PP Part Number
LS-MM854G-S3I
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
4.25Gbps
Wavelength
850nm
Max Cable Distance
300m
Connector
Duplex LC
Media
MMF
Transmitter Type
VCSEL
Receiver Type
PIN
Receiver Sensitivity
-15dBm
DDM/DOM
Supported
TX Power
-9 to 0dBm
RX Power
-16 to -1dBm
Operating Temperature Range
-40 to 85°C
Protocols
MSA Compliant
Key Features of LINK-PP LS-MM854G-S3I 4.25G SFP
Designed for extreme temperatures, this hot-swappable 4.25Gbps Fibre Channel SFP transceiver features an industrial-grade 850nm VCSEL engine and digital diagnostic monitoring. Compliant with SFP MSA and SFF-8472 specifications with a duplex LC connector, it ensures robust network connection reliability, energy efficiency, and superior signal integrity.
LINK-PP LS-MM854G-S3I 4.25G SFP Optical Module
Built for wide-temperature industrial applications, the LINK-PP LS-MM854G-S3I SFP optical module delivers dependable multi-rate data transmission. It maintains ultra-low latency and consistent signal performance across rugged switches, routers, and outdoor networking equipment.
LS-MM854G-S3I: 4.25G Connectivity for Storage Area Networks
Engineered for demanding storage area networks, this industrial 4.25G Fibre Channel module seamlessly connects host bus adapters and SAN switches. Supporting 4.25G, 2.125G, and 1.0625G FC protocols, it provides flexible, high-speed storage interconnectivity.
LS-MM854G-S3I Module with 850nm Wavelength
Equipped with a high-performance 850nm VCSEL laser and PIN receiver, this transceiver optimizes short-wavelength optical communication. The 850nm light source delivers exceptional optical power consistency, high bandwidth efficiency, and stable thermal operating characteristics.
LS-MM854G-S3I Module Supporting 300m Transmission
Tailored for short-reach multimode links, this module supports transmission distances up to 300 meters over OM3 MMF cabling. It is an ideal optical solution for intra-building enterprise links, server racks, and industrial network backbones.
LS-MM854G-S3I Module with Duplex LC Interface
Designed with an industry-standard duplex LC receptacle, this transceiver guarantees secure, low-loss fiber optic connectivity. The durable mechanical housing ensures reliable plug-and-play installation across industrial switches, patch panels, and optical media converters.
LS-MM854G-S3I Module with DOM for Real-Time Monitoring
Featuring Digital Optical Monitoring (DOM) compliant with SFF-8472, this module provides real-time telemetry. Network administrators can monitor operating temperature, supply voltage, laser bias current, and optical transmit/receive power to prevent system failures.
LINK-PP LS-MM854G-S3I 4.25G SFP Certification
Manufactured under rigorous quality control standards, the LINK-PP LS-MM854G-S3I 4.25G SFP transceiver possesses international safety and environmental certifications, ensuring trusted operation across global industrial networks.
Each industrial optical transceiver undergoes a comprehensive multi-point quality testing program, including electrical verification, optical parameter testing, and wide-temperature stress evaluation to guarantee zero-defect factory delivery.
LS-MM854G-S3I Quality Certifications
This industrial SFP transceiver complies with international regulatory standards, including CE, FCC, UKCA, UL, REACH, and RoHS, confirming environmental compliance and high product manufacturing standards.
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.
LS-MM854G-S3I Certified for Reliable Host-Device Compatibility
Built according to strict SFP Multi-Source Agreement specifications, this module is thoroughly certified for broad hardware interoperability across major industrial switches, routers, and host controllers.
Rigorous Testing Ensures Reliable SFP Performance
Advanced testing protocols ensure that every industrial SFP module provides precise optical output, minimal signal distortion, and superior data transmission stability.
Optical Spectrum Test
Spectral wavelength verification guarantees center wavelength alignment and high side-mode suppression performance.
Eye Pattern Test
Transmitter eye diagram testing evaluates optical signal quality, extinction ratio, and jitter margin.
Bit Error Rate Test
BER testing confirms loss-free data transmission and ensures high receiver sensitivity performance.
Temperature Test
Wide-temperature chamber testing validates stable optical performance across -40°C to +85°C extremes.
Product Shipping for LINK-PP LS-MM854G-S3I 4.25G SFP
Our secure packaging and logistics workflow ensures that each optical transceiver arrives safely worldwide, maintaining high factory reliability upon delivery.
Anti-Static Protective Packaging
Sealed in ESD anti-static packaging to protect sensitive components during transit.
Shock-Resistant Transport Protection
Durable, cushioned packaging shields transceivers against physical impact and vibration.
Fast Order Processing and Dispatch
Streamlined order handling guarantees prompt warehouse processing and fast dispatch.
Global Logistics and International Delivery
Reliable international shipping partners ensure fast, safe worldwide express delivery.
Installing the LINK-PP LS-MM854G-S3I 4.25G SFP transceiver is fast and straightforward. Insert the hot-pluggable module into an open SFP port until locked, then attach duplex LC multimode fiber cables to establish high-speed optical links instantly.
LS-MM854G-S3I Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable LS-MM854G-S3I modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
Definitely. This is a true industrial-grade optical transceiver built for harsh deployment environments. It supports a wide operating temperature range from -40°C all the way up to +85°C (-40°F to 185°F), guaranteeing a stable 4.25Gbps link in both freezing and extreme heat conditions. By
admin on
2026-08-07
A:
Yes, absolutely! The LS-MM854G-S3I is fully MSA compliant and heavily tested for multi-brand interoperability. It works seamlessly as a plug-and-play solution with Brocade, Cisco, Finisar, and other major OEM network equipment without triggering any unsupported transceiver alerts. By
admin on
2026-05-25
A:
Yes. The LINK-PP LS-MM854G-S3I meets strict international regulatory standards. It is fully CE, FCC, UKCA, REACH, and RoHS compliant. Our manufacturing process is also ISO9001 and ISO14001 certified, ensuring top-tier safety, quality, and environmental compliance. By
admin on
2026-04-15
A:
It offers identical core performance to the original OEM modules, including a premium 850nm VCSEL transmitter and full SFF-8472 DOM/DDM support for real-time monitoring of voltage, temperature, and Tx/Rx optical power. You get enterprise-grade stability at a fraction of the OEM brand cost. By
admin on
2026-03-13
Please write comments with more than three
character.
495983
467100
N***s
Peru
Verified
Purchase
5 .0
2026-06-04
Used them for a harsh environment base station backhaul. The -40°C to 85°C operating temperature is crucial here. Excellent 850nm VCSEL transmitter stability over duplex LC fiber. Highly recommend for telecom ops.
Please write comments with more than three
character.
495983
467111
S***s
Netherlands
Verified
Purchase
5 .0
2026-06-04
Deployed these 4.25G Fibre Channel SFPs in our outdoor cabinets (-30°C). The industrial wide-temp rating is legit! DDM telemetry showed perfect Tx/Rx power over 150m OM3 MMF. Zero packet loss on Brocade switches.
Please write comments with more than three
character.
495983
467097
W***e
Malaysia
Verified
Purchase
5 .0
2025-12-27
Massive batch deployment of this industrial LC MMF transceiver went super smooth. Auto-negotiates 4.25G, 2.125G, and 1.0625G perfectly. Link-PP's 4.25G SFP module saved our data center interconnect budget immensely!
Please write comments with more than three
character.
495983
467113
S***s
Ireland
Verified
Purchase
5 .0
2025-11-24
Upgraded our enterprise SAN with these 850nm 300m transceivers. SFF-8472 DOM monitoring gives real-time voltage and temperature data. Way more cost-effective than OEM, perfect multi-brand switch compatibility for campus fiber networking.
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