Engineered for next-generation data centers, this high-performance 800G QSFP-DD optical transceiver complies with IEEE 802.3cu and IEEE P802.3ck standards. Featuring a built-in Broadcom 7nm DSP chip, it supports dual 400GBASE-FR4 optical links across 2km of single-mode fiber with a dual duplex LC interface, operating under 17W power consumption and CMIS 5.0 management specifications.
Key Features of FS QDD-2FR4-800G Compatible LINK-PP 800G QSFP-DD
This hot-pluggable 800G transceiver features a dual 400GAUI-4 electrical interface, advanced 53.125 GBd PAM4 modulation, and class 1 laser safety. Delivering max 17W power efficiency, its versatile dual LC connector architecture enables flexible breakout networking to 2x400G FR4 or 8x100G FR links without requiring complex external breakout cabling.
Built for hyper-scale bandwidth demands, this 800G QSFP-DD optical module integrates eight optical channels delivering 800Gbps aggregate throughput. It provides seamless high-speed interconnectivity, low latency, and energy-efficient optical transmission across modern enterprise network architectures.
QDD-2FR4-800G: 800G Connectivity for Supercomputing Networks
Accelerate artificial intelligence clusters and high-performance computing workloads with ultra-high 800G throughput. This module eliminates bandwidth bottlenecks in supercomputing environments, ensuring reliable, low-latency data transport between high-density spine switches and compute nodes.
QDD-2FR4-800G Module with CWDM4 Technology for Fiber Efficiency
Utilizing coarse wavelength division multiplexing, this CWDM4 transceiver multiplexes four distinct optical lanes over single-mode fiber infrastructure. This advanced optical technology doubles link density while significantly lowering optical fiber deployment costs in data center interconnects.
QDD-2FR4-800G Module with 1271nm, 1291nm, 1311nm, 1331nm Wavelength
Operating on precise CWDM grid wavelengths of 1271nm, 1291nm, 1311nm, and 1331nm across dual optical engines, this transceiver guarantees optimal signal purity, minimal chromatic dispersion, and superior optical reach across all active transmission channels.
QDD-2FR4-800G Module Supporting 2km Transmission
Capable of reliable optical transmission up to 2km over standard single-mode fiber (SMF), this module offers the ideal reach for intra-data center campus interconnects, connecting switch-to-switch links across expansive cloud facilities without needing amplification.
QDD-2FR4-800G Module with Dual Duplex LC Interface
Designed with two duplex LC/UPC optical connectors, this module houses two physically distinct 400G FR4 transceivers in one form factor. It simplifies cable management and provides direct 2x400G breakout connectivity using standard LC patch cords.
QDD-2FR4-800G Module with DOM for Real-Time Monitoring
Integrated Digital Optical Monitoring (DOM) capabilities allow network administrators to monitor real-time operating parameters, including laser bias current, optical output power, temperature, and supply voltage, ensuring proactive system troubleshooting and high network availability.
Fully compliant with international standards, this 800G QSFP-DD optical module meets stringent global regulatory frameworks, assuring enterprise users of safety, environmental compliance, and consistent hardware operational reliability.
Each transceiver undergoes a multi-stage manufacturing quality assurance program, including automated optical characterization and EEPROM coding verification, ensuring flawless performance before arriving at customer network facilities.
QDD-2FR4-800G Quality Certifications
Certified under CE, FCC, UKCA, UL, and REACH regulations, our transceivers guarantee toxic-free materials, electromagnetic safety, and superior manufacturing quality tailored for deployment in worldwide data communications markets.
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.
QDD-2FR4-800G Certified for Reliable Host-Device Compatibility
Extensively validated across major OEM switch, router, and server host platforms, this module guarantees plug-and-play CMIS compatibility, seamless link bring-up, and zero host-system recognition issues.
Our factory applies comprehensive optoelectronic testing routines to ensure every QSFP-DD transceiver meets strict bandwidth, signal purity, and thermal endurance requirements.
Optical Spectrum Test
Verifies precise central wavelengths, side-mode suppression ratio, and spectral width performance across all channels.
Eye Pattern Test
Evaluates PAM4 eye diagram clarity, TDECQ values, and transmitter jitter to ensure optimal signal integrity.
Bit Error Rate Test
Validates receiver sensitivity under maximum throughput, guaranteeing packet-error-free optical data transmission.
Temperature Test
Tests full operational stability across commercial 0°C to 70°C case temperature environmental ranges.
Product Shipping for FS QDD-2FR4-800G Compatible LINK-PP 800G QSFP-DD
All high-speed optical modules are securely packaged and processed under standardized logistics protocols to guarantee physical safety during international transit.
Anti-Static Protective Packaging
Encased in ESD-shielding clamshell packaging to safeguard sensitive internal DSP electronics.
Shock-Resistant Transport Protection
Cushioned within high-density foam cartons to withstand severe shock and vibration.
Fast Order Processing and Dispatch
Orders are swiftly processed and dispatched within 24 hours of confirmation.
Global Logistics and International Delivery
Shipped worldwide via express carriers including DHL, FedEx, and UPS.
Align the transceiver module with the host switch slot, push smoothly until latched, and attach dual LC fiber cables. Ensure proper bend radius and verify real-time telemetry through host CLI monitoring commands for optimal performance.
QDD-2FR4-800G 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 QDD-2FR4-800G 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:
The standard version operates safely between 0°C and 70°C, which is ideal for indoor data centers. If you need it for harsh outdoor environments, we absolutely offer customized industrial-grade versions (-40°C to 85°C). Just let us know your operational requirements! By
admin
A:
You can stick to standard LC! This module features a Dual Duplex LC connector. Just grab your standard Single-Mode Fiber (SMF) LC/UPC patch cables, and you're ready to push data up to 2km seamlessly without needing expensive MPO/MTP trunks. By
admin
A:
Yes, they do. The LQD-CW800-2FR4C strictly follows IEEE 802.3cu and QSFP-DD MSA standards. Plus, they are fully CE, FCC, and RoHS certified, ticking all the boxes for global enterprise and telecom compliance. By
admin
A:
Definitely! We offer tiered wholesale pricing for data center and enterprise bulk deployments. Just shoot an email to our sales team with your required quantity, and we'll provide a customized, highly competitive B2B quote for your project. By
admin
A:
Yes, absolutely. The LQD-CW800-2FR4C is fully OEM compatible. We’ve tested it across major switch brands like Cisco, Arista, and Juniper to ensure seamless interoperability. It plugs in and works natively, zero third-party alarms. By
admin
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495771
516198
J***r
Canada
Verified
Purchase
5 .0
2026-08-22
We ran a massive multi-brand switch compatibility test using these LINK-PP 800G modules. Flawless OEM compatibility across the board, making our server room bulk deployment super cost-effective.
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495771
516191
R***e
Hong Kong
Verified
Purchase
5 .0
2026-07-16
Tested the 2x 400GBASE-FR4 module for data center interconnects. Transmitter and receiver optical power at 1310nm is highly stable. DOM monitoring tracks operating temperature accurately during massive loads.
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495771
516194
C***t
Greece
Verified
Purchase
5 .0
2026-04-30
Installed this CWDM4 transceiver in outdoor cabinets for base station backhaul. Despite harsh conditions, the dual duplex LC interface handles the 850Gbps bandwidth without any packet drop whatsoever.
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495771
516197
D***n
Ireland
Verified
Purchase
5 .0
2026-03-08
Deployed these 800G QSFP-DD optics in our campus fiber network. The DDM metrics are spot on. Perfectly compatible with Cisco switches, delivering outstanding 2km SMF performance!
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