The LINK-PP LO-CW400-FR4C is a high-performance 400G OSFP optical transceiver compliant with IEEE 802.3cu and OSFP MSA standards. Engineered with an 8x50G PAM4 electrical interface and 4x100G PAM4 CWDM optical lanes, it features EML transmitters, PIN receivers, duplex LC connectivity, a 3.3V power supply, and under 12W power dissipation across 2km SMF links.
LINK-PP Part Number
LO-CW400-FR4C
Vendor Name
LINK-PP
Form Factor
OSFP
Max Data Rate
425Gbps
Max Cable Distance
2km
Wavelength
1271nm,1291nm,1311nm,1331nm
Connector
Duplex LC
Media
SMF
Transmitter Type
EML
Receiver Type
PIN
DDM/DOM
Supported
Operating Temperature Range
0°C to +70°C
Modulation (Electrical)
8x50G-PAM4
Modulation (Optical)
4x100G-PAM4
Protocols
OSFP MSA 5.1,CMIS 4.0,IEEE 802.3cu,IEEE 802.3bs
Warranty
5 Years
Key Features of LINK-PP LO-CW400-FR4C 400G OSFP
The LINK-PP LO-CW400-FR4C 400G OSFP optical transceiver delivers 425Gb/s aggregate bandwidth with hot-pluggable reliability. Integrating low-power 400GAUI-8 electrical retiming, robust CWDM4 optics, duplex LC connectivity, and intelligent digital diagnostics (DOM), this energy-efficient module ensures exceptional signal integrity, low latency, and seamless scalability in data centers.
LINK-PP LO-CW400-FR4C 400G OSFP Optical Module
Designed for 400GBASE-FR4 applications, the LINK-PP LO-CW400-FR4C OSFP optical module integrates cutting-edge PAM4 DSP technology. It converts eight 50Gbps electrical channels into four 100Gbps optical channels, providing robust high-density interconnection for enterprise cloud infrastructures.
LO-CW400-FR4C: 400G Connectivity for AI Generation Networks
Tailored for next-generation AI clusters and machine learning workloads, the LO-CW400-FR4C delivers ultra-low latency and 400Gbps throughput. Its optimized thermal design and KP4 FEC support prevent data loss in demanding high-performance computing (HPC) environments.
LO-CW400-FR4C Module with CWDM4 Technology for Fiber Efficiency
Utilizing CWDM4 wavelength division multiplexing, the LO-CW400-FR4C combines four independent 100Gb/s optical lanes onto a single duplex fiber. This architecture maximizes fiber asset utilization, significantly reducing cabling infrastructure complexity and overall operational costs.
LO-CW400-FR4C Module with 1271nm, 1291nm, 1311nm, 1331nm Wavelength
The LO-CW400-FR4C operates across standard CWDM grid center wavelengths: 1271nm, 1291nm, 1311nm, and 1331nm. Driven by high-reliability cooled EML lasers, it guarantees strict spectral precision, superior side-mode suppression (SMSR >30dB), and minimal chromatic dispersion.
LO-CW400-FR4C Module Supporting 2km Transmission
Designed for intermediate-reach connectivity, the LO-CW400-FR4C optical transceiver supports transmission distances up to 2km over standard G.652 single-mode fiber (SMF). It is ideal for campus interconnects, metro aggregation, and intra-datacenter spine-to-leaf switching links.
LO-CW400-FR4C Module with Duplex LC Interface
Featuring a standard duplex LC optical receptacle, the LO-CW400-FR4C ensures plug-and-play optical connectivity. Its precision-molded mechanical design allows seamless integration into existing single-mode patch panels, delivering reliable physical mating and minimal insertion loss.
LO-CW400-FR4C Module with DOM for Real-Time Monitoring
The LO-CW400-FR4C features built-in Digital Optical Monitoring (DOM) via an I2C management interface. Network administrators can monitor real-time parameters—including optical Tx/Rx power levels, laser bias current, supply voltage, and internal case temperature.
LINK-PP LO-CW400-FR4C 400G OSFP Certification
The LINK-PP LO-CW400-FR4C 400G OSFP transceiver is manufactured under strict quality standards, ensuring full regulatory compliance, industrial-grade electrical safety, and sustainable environmental performance for global network deployments.
Every LO-CW400-FR4C optical module undergoes an exhaustive multi-stage quality assurance protocol, verifying signal integrity, optical power calibration, packet loss metrics, and long-term hardware reliability before factory dispatch.
LO-CW400-FR4C Quality Certifications
The LO-CW400-FR4C fully complies with international safety and environmental directives, holding valid CE, FCC, UKCA, UL, RoHS-6, and REACH certifications to guarantee enterprise-level security and ecological compliance.
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.
LO-CW400-FR4C Certified for Reliable Host-Device Compatibility
Programmed with multi-vendor EEPROM code, the LO-CW400-FR4C delivers certified interoperability and seamless host-device recognition across major 400G networking switches, high-end routers, and server NIC platforms.
LINK-PP enforces comprehensive 100% factory screening on each LO-CW400-FR4C transceiver to ensure flawless 400G link performance, ultra-low jitter, and high operational stability.
Optical Spectrum Test
Evaluates CWDM center wavelengths and side-mode suppression ratio for strict IEEE 802.3cu spectral compliance.
Measures post-FEC and pre-FEC transmission performance to confirm error-free 400Gbps data throughput.
Temperature Test
Validates stable optical output and power efficiency across 0°C to +70°C operating conditions.
Product Shipping for LINK-PP LO-CW400-FR4C 400G OSFP
LINK-PP provides secure packaging and expedited global shipping for LO-CW400-FR4C transceivers, safeguarding sensitive optoelectronics throughout worldwide transit and prompt arrival.
Anti-Static Protective Packaging
Sealed in individual ESD bags protecting delicate optics against electrostatic damage.
Shock-Resistant Transport Protection
Cushioned with custom high-density foam cartons to withstand transit vibration.
Fast Order Processing and Dispatch
Streamlined warehouse operations guarantee rapid fulfillment and prompt order dispatch.
Global Logistics and International Delivery
Partnered with leading express couriers for reliable, tracked global door-to-door delivery.
The LINK-PP LO-CW400-FR4C 400G OSFP transceiver enables seamless hot-plug installation into OSFP cage ports. Operators easily insert the module, connect standard duplex LC single-mode patch cables, and verify instant 400Gbps link synchronization and telemetry.
LO-CW400-FR4C 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 LO-CW400-FR4C 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:
Yes, this module strictly adheres to OSFP MSA, IEEE 802.3bs 400GBASE-FR4, and CMIS management standards. It guarantees safe, compliant, and standardized operation across your entire network architecture. By
admin
A:
Absolutely! All our 400GBASE-FR4 OSFP modules are fully tested for multi-vendor compatibility. They work flawlessly with Arista, Cisco, Juniper, and NVIDIA platforms, offering seamless plug-and-play interoperability. By
admin
A:
The standard LO-CW400-FR4C supports commercial operating temperatures (0°C to 70°C). However, we do manufacture industrial-grade versions (-40°C to 85°C) specifically engineered for harsh outdoor telecommunication and edge computing environments. Please contact us to specify the industrial variant! By
admin
A:
Yes, we provide competitive tiered pricing for volume orders. Since you're deploying a large-scale data center upgrade, please reach out to our sales team directly, and we’ll customize a highly cost-effective wholesale quote for you. By
admin
A:
You can use your existing standard duplex LC/UPC single-mode fiber (SMF) patch cords! Unlike some 400G optics that require MPO connectors, this 400GBASE-FR4 transceiver uses a standard Duplex LC interface, making your fiber infrastructure routing much simpler and extremely cost-efficient. By
admin
Please write comments with more than three
character.
495212
513059
M***r
Colombia
Verified
Purchase
5 .0
2026-08-25
We benchmarked this 8x50G PAM4 duplex LC transceiver against original Juniper optics in our AI training cluster. Latency and DDM/DOM diagnostics are identical, and operating temperatures remain totally stable under maximum throughput. Brilliant!
Please write comments with more than three
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495212
513069
J***t
France
Verified
Purchase
5 .0
2026-08-08
Sourced these 400G OSFP optics for an edge computing site. The MSA standard compliance made integration a breeze. We pushed 400Gbps traffic over 1.8km single-mode fiber with zero bit errors over a week-long stress test.
Please write comments with more than three
character.
495212
513078
C***n
Argentina
Verified
Purchase
5 .0
2026-06-22
Highly recommend this transceiver for bulk data center upgrades. The OSFP connector build is premium, and 1310nm laser output power is spot on. Saved us thousands without sacrificing network reliability.
United States · English · USD
