QSFP112-FR4-400G is an advanced 400G QSFP112 transceiver designed to operate as a 4 x 100G PAM4 optical module across CWDM wavelengths (1271nm, 1291nm, 1311nm, and 1331nm), delivering up to 2km of data transmission over single-mode fiber (SMF) under standard commercial conditions (0 to +70°C) while ensuring full compliance with the 100G Lambda MSA 400G-FR4 specification and integrating real-time digital diagnostic monitoring.
Key Features of Cisco QSFP112-FR4-400G Compatible LINK-PP 425G QSFP112
Cisco QSFP112-FR4-400G Compatible LINK-PP module is a highly efficient 400G QSFP112 optical transceiver designed to optimize high-speed data transmission over single-mode fiber. It integrates advanced CWDM technology, a duplex LC interface, and real-time diagnostic capabilities into a compact physical-layer design. Operating within a commercial temperature range, this module provides reliable 2km reach with optimized power efficiency for modern networks.
This module features a 4 CWDM lanes MUX/DEMUX design that combines and separates optical signals efficiently. It maintains a maximum power consumption of 10W, helping operators manage thermal loads in high-density switch chassis. The hot-pluggable QSFP112 form factor ensures seamless installation without disrupting active network operations.
QSFP112-FR4-400G: 400 Gbps Connectivity for Hyperscale Data Centers
Equipped with a 4 × 106.25 Gbps electrical interface compliant with 400GAUI-4, this module delivers massive throughput for cloud and hyperscale environments. It enables rapid data processing across core network backbones by utilizing 100G PAM4 signaling per lane. This rapid serialization supports intense data center traffic Demands while keeping cabling requirements minimal.
QSFP112-FR4-400G Module with CWDM Technology for Fiber Efficiency
By utilizing Coarse Wavelength Division Multiplexing (CWDM), the transceiver combines four distinct channels onto a single fiber pair. This layout maximizes the data capacity of existing single-mode fiber infrastructure without requiring costly new cable deployment. It represents a practical approach to scaling bandwidth while optimizing overall physical plant assets.
QSFP112-FR4-400G Module with 1271nm, 1291nm, 1311nm, 1331nm Wavelength
The transceiver operates across four precise grid wavelengths: 1271nm, 1291nm, 1311nm, and 1331nm. Each lane carries a 100G optical signal simultaneously with excellent channel isolation and minimal optical crosstalk. This specific wavelength spacing ensures clean signal integrity over the single-mode fiber.
Adhering to the 100G Lambda MSA 400G-FR4 specification, the module reliably covers spans up to 2km over standard single-mode fiber (SMF). This link budget is ideal for local intra-data center connections and campus network aggregations. It provides the necessary reach to span across large building complexes without requiring intermediate inline amplification.
QSFP112-FR4-400G Module with Duplex LC Interface
The industry-standard duplex LC optical connector interface provides a familiar, low-insertion-loss connection point for fiber patching. Its robust mechanical locking latch prevents accidental disconnections and ensures stable optical alignment. This standard connection style simplifies field deployment and matches standard enterprise patch panels.
QSFP112-FR4-400G Module with DDM for Real-Time Monitoring
Integrated Digital Diagnostic Monitoring (DDM) delivers continuous, real-time telemetry on critical operating metrics. Network administrators can remotely track parameters such as transceiver temperature, laser bias current, transmitted optical power, and received optical power. This proactive visibility allows teams to catch link degradation issues before an actual network outage occurs.
Cisco QSFP112-FR4-400G Compatible LINK-PP undergoes rigorous operational validation and carries international safety and environmental certifications, including ISO 9001, CE, RoHS, and FCC compliance.
Every transceiver is subjected to comprehensive optical line-rate testing and signal integrity verification to guarantee stable physical-layer performance before shipping.
QSFP112-FR4-400G Quality Certifications
These regulatory compliance standards confirm that the module meets strict environmental directives and global electrical engineering regulations for safe network deployment.
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.
QSFP112-FR4-400G Certified for Reliable Host-Device Compatibility
The module hardware is thoroughly audited across major enterprise switch and router platforms to ensure seamless hardware interoperability and error-free port recognition.
LINK-PP subjects every QSFP112-FR4-400G QSFP112 optical transceiver to stringent hardware validation to verify optical signal integrity and strict physical-layer compliance across diverse operating conditions. Discover the complete validation methodology at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify precise channel wavelength alignment across the CWDM grid.
Eye Pattern Test
Analyze optical signal quality and waveform timing margins directly.
Bit Error Rate Test
Measure data transmission accuracy at the full 400G line rate.
Temperature Test
Confirm stable module operation across commercial environmental thermal ranges.
Product Shipping for Cisco QSFP112-FR4-400G Compatible LINK-PP 425G QSFP112
Secure transit procedures guarantee that every optical module arrives safely. Reliable international shipping methods ensure prompt delivery to your location.
Anti-Static Protective Packaging
Prevent electrostatic discharge damage using specialized protective component packaging.
Shock-Resistant Transport Protection
Safeguard optical components against mechanical impacts during transit.
Fast Order Processing and Dispatch
Accelerate warehouse fulfillment to minimize lead times for deployment.
Global Logistics and International Delivery
Ship modules worldwide through established freight network pathways.
This QSFP112-FR4-400G hot-pluggable 400G module inserts directly into standard QSFP112 ports to establish instant, low-latency links. It is engineered for rapid deployment across high-density leaf-and-spine structures, cloud routing nodes, and enterprise campus aggregations, providing a highly reliable physical-layer connection for intensive data traffic.
QSFP112-FR4-400G 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 QSFP112-FR4-400G 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.
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Maximum power consumption is kept strictly under 10W per module, minimizing overall thermal dissipation across high-density switch faces. By
admin on
2025-07-16
Deployed a batch of these LQ-CW400-FR4C transceiver modules for 400G optics backhaul links between equipment shelters. The CWDM wavelengths align perfectly with our optical multiplexers. Operates reliably across variable cabinet temperatures.
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495070
399430
C***e
New Zealand
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Purchase
5 .0
2026-04-22
Gets the full 2km over standard SMF with zero errors, perfect for our inter-building links. Duplex LC receptacle saved us from re-terminating all the MPO trunks.
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495070
399427
N***e
Poland
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Purchase
5 .0
2026-03-09
Deployed these modules across our multi-building campus network over a 1.8km duplex LC single-mode link. Signal attenuation measured well within the optical power budget. The QSFP112 form factor fits snugly into high-density switch ports with efficient heat dissipation. Transmitter optical dispersion penalty remains minimal, ensuring clean PAM4 signaling even during high ambient temperature fluctuations inside the equipment room.
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495070
399434
A***r
Spain
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Purchase
5 .0
2025-09-09
Upgraded our campus distribution layer using this 400G QSFP112 FR4 module over 1.2km duplex LC SMF. Line rate is stable with zero frame drops during peak hours. DOM metrics map accurately to our monitoring platform.
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495070
399422
D***z
Finland
Verified
Purchase
5 .0
2025-07-19
Our engineering team integrated this 400G QSFP112 transceiver module into our standard monitoring infrastructure via SNMP DDM polling. The optical output levels line up precisely with manufacturer datasheets across the entire commercial operating temperature spectrum. The duplex LC connector mechanism provides low insertion loss and high return loss characteristics. It passed full-throughput packet loss tests and link flapping checks without a single anomaly. Fantastic alternative to overpriced original modules.
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495070
399437
R***z
Thailand
Verified
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5 .0
2025-06-18
Purchased 50 units for a client data center expansion project. EEPROM diagnostics read clean and Tx output power is consistently balanced across all 4 CWDM channels.
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495070
399432
G***e
Ukraine
Verified
Purchase
5 .0
2025-05-14
Evaluated this 400G 2km single-mode optical module for medium-reach metro distribution spans. Tested over various fiber lengths up to 1.6km; receiver sensitivity easily handled the attenuation without requiring external optical attenuators or amplifiers. The module locked onto the 100G PAM4 signals swiftly upon insertion, maintaining stable line-rate throughput under full load while keeping power consumption well under its 10W max rating. Fits our requirement for low-power, high-density 400G network deployments seamlessly.
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495070
399424
V***s
Singapore
Verified
Purchase
5 .0
2025-04-01
Was slightly anxious about non-OEM optics on our core switch fleet, but this QSFP112 module was detected right away. RX power levels stay right in the optimal range. Will definitely order more for phase two!
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495070
399428
D***n
Austria
Verified
Purchase
5 .0
2025-01-08
We evaluated this 400G QSFP112 FR4 transceiver for our data center spine-leaf upgrade over 1.5km OS2 single-mode fiber. The module utilizes 4 x 100G PAM4 modulation centered around the CWDM wavelength. Optical spectrum analysis verified clean channel separation with negligible crosstalk. Internal DOM telemetry provides real-time tracking for operating temperature, supply voltage, laser bias current, and optical launch/receive power. After a 48-hour continuous line-rate soak test, zero uncorrectable FEC errors were registered. A top-tier optical solution for enterprise architectures.
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