The Generic QDD-SR4-2x100G Compatible LINK-PP module is a cutting-edge 200GBASE-SR4 optical transceiver module engineered in a hot-pluggable QSFP56 form factor. Operating over a single 3.3V power supply, it leverages a built-in 200G PAM4 DSP to aggregate high-speed traffic efficiently. It supports aggregate bit rates up to 212.5Gb/s while maintaining a low power dissipation under 5W.
Generic Part Number
QDD-SR4-2x100G
Vendor Name
LINK-PP
Form Factor
QSFP56
Max Data Rate
212.5Gbps
Wavelength
850nm
Max Cable Distance
70m@OM3/100m@OM4
Connector
MTP/MPO-12
Media
MMF
Transmitter Type
VCSEL 850nm
Receiver Type
PIN
Power Consumption
≤3.3W
Extinction Ratio
>3dB
DDM/DOM
Supported
Operating Temperature Range
0°C to +70°C
TX Power
-3~3dBm
Receiver Sensitivity
-7dBm
Powerbudget
3.5dBm
Receiver Overload
5dBm
CDR (Clock and Data Recovery)
TX & RX Built-in CDR
Inbuilt FEC
No
Protocols
IEEE 802.3bs, QSFP56 MSA, SFF-8665, SFF-8636
Warranty
5 Years
Key Features of Generic QDD-SR4-2x100G Compatible LINK-PP 200G QSFP56
This high-performance transceiver integrates an uncooled 4-channel 850nm VCSEL array and a 4-channel PIN photodetector array. Fully compliant with CMIS V4.0 and IEEE 802.3cd standards, it features a 200GAUI-4 electrical interface, built-in digital diagnostics, and a commercial operating case temperature ranging from 0°C to 70°C.
The Generic QDD-SR4-2x100G Compatible LINK-PP optical module offers a robust, energy-efficient solution for short-reach data communication. Utilizing advanced 200G PAM4 modulation technology, it delivers exceptional signal integrity and ultra-low latency for high-density networking environments.
QDD-SR4-2x100G: 200G Connectivity for Campus Core Networks
Designed to handle traffic-heavy enterprise infrastructure, this module brings reliable 200G connectivity to demanding campus core networks. It seamlessly eliminates bandwidth bottlenecks, ensuring smooth multi-gigabit data transmission across enterprise data centers and switch-to-switch links.
QDD-SR4-2x100G Module with 850nm Wavelength
Operating at a nominal 850nm wavelength, the module is equipped with an array of premium VCSEL transmitters. This optical configuration optimizes short-range fiber-optic communication, providing a stable, low-dispersion solution that fulfills stringent corporate hardware and networking standards.
QDD-SR4-2x100G Module Supporting 100m Transmission
Engineered for excellent short-reach performance, this transceiver supports link lengths up to 70 meters on OM3 multi-mode fiber. For enhanced data center layout flexibility, it reaches a maximum transmission distance of 100 meters over OM4 or OM5 multi-mode fibers.
QDD-SR4-2x100G Module with MPO-12 Interface
The transceiver features a single male MPO-12 receptacle designed for parallel optical lane assignments. This interface guarantees secure, rapid fiber connection alignment, drastically simplifying high-density patch cabling installations while maximizing optical link stability across active data paths.
QDD-SR4-2x100G Module with DOM for Real-Time Monitoring
With integrated Digital Optical Monitoring (DOM) compliant with CMIS V4.0, users can track vital real-time metrics. The system continuously monitors module temperature, supply voltage, laser bias current, and receive/transmit power to prevent sudden network downtime.
The Generic QDD-SR4-2x100G Compatible LINK-PP undergoes comprehensive regulatory verification to meet strict global industry standards. These credentials guarantee full structural safety, electronic compliance, and environmental protection in modern network deployments.
Every single transceiver is subjected to a comprehensive quality testing program prior to shipment. Our hardware screening ensures optimal performance, structural durability, and flawless multi-lane signal efficiency.
QDD-SR4-2x100G Quality Certifications
The transceiver holds premier certifications including Class 1 Laser Safety, CE EMC, FCC Part 15 Subpart B, and UL 62368-1 electrical safety. It is also fully RoHS-6 compliant.
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-SR4-2x100G Certified for Reliable Host-Device Compatibility
Built according to strict QSFP MSA specifications, this module is officially certified for cross-brand ecosystem integration. It guarantees seamless, drop-in compatibility across major multi-vendor switches, routers, and server host devices.
Our state-of-the-art laboratory implements stringent multi-stage testing protocols to guarantee that every QSFP56 module exhibits flawless mechanical reliability and superior network performance under load.
Optical Spectrum Test
Advanced spectral analysis verifies that the 850nm central wavelength and RMS spectral width remain precisely within standard IEEE parameters.
Eye Pattern Test
Automated eye pattern analysis evaluates signal-to-noise ratios, jitter levels, and transmitter eye closure to guarantee outstanding PAM4 electrical-to-optical conversion.
Bit Error Rate Test
The module undergoes comprehensive Pre-FEC bit error rate benchmarking to verify reliable error-free data packet delivery across multi-mode fiber runs.
Temperature Test
Environmental chamber stress testing ensures the module maintains strict electrical parameter stability throughout its commercial case temperature range of 0°C to 70°C.
Product Shipping for Generic QDD-SR4-2x100G Compatible LINK-PP 200G QSFP56
We leverage industry-leading packaging and premium global logistics networks to guarantee your optical hardware arrives in pristine condition, completely ready for immediate data center deployment.
Anti-Static Protective Packaging
Each transceiver is sealed in a customized ESD anti-static bag to shield delicate internal DSP components.
Shock-Resistant Transport Protection
Thick, form-fitting internal foam cushioning protects the module housing against sudden drops, vibration, or impact during transit.
Fast Order Processing and Dispatch
Our automated logistics team handles orders immediately, ensuring quick inventory allocation, packaging, and rapid dispatch from our facility.
Global Logistics and International Delivery
Partnering with top-tier international couriers ensures secure, rapid, and fully traceable door-to-door product delivery to tech hubs worldwide.
This brief walkthrough demonstrates how to properly hot-plug the QDD-SR4-2x100G module into a high-density switch port. It highlights the ease of engaging the pull-tab mechanism, establishing an MPO-12 fiber connection, and verifying active link status.
QDD-SR4-2x100G 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-SR4-2x100G 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:
You can definitely use your existing OM3 runs! These modules support up to 70 meters on OM3 multi-mode fiber. If you decide to upgrade to OM4 or OM5 later, you'll be able to push the transmission distance to the maximum 100 meters. Just make sure your MTP/MPO-12 patch cords are clean prior to installation! By
admin on
2026-01-11
A:
This specific LQ-M85200-SR4C model is designed for commercial use, supporting standard operating temperatures from 0°C to +70°C (32°F to 158°F). It’s perfect for indoor server rooms and climate-controlled data centers. If you need industrial wide-temp (-40°C to +85°C) versions for outdoor cell tower backhaul, please contact us for customized rugged options! By
admin on
2025-12-23
A:
Hi! We definitely support enterprise deployments. For a batch of 200 units, we can offer custom volume pricing that scales down your cost per unit significantly. Please shoot an email to our sales team, and they’ll quickly draft a discounted net-term quote for your procurement department. By
admin on
2025-11-28
A:
Hi there! Yes, absolutely. These 200G QSFP56 modules are fully OEM compatible and have been tested across multi-brand environments, including Cisco, Arista, Dell, and Ruijie platforms. They are strictly coded to bypass vendor locks, so you can plug and play without worrying about CLI warnings. By
admin on
2025-11-17
A:
Yes, it does! The transceiver is fully compliant with CMIS V4.0, IEEE 802.3cd, and SFF-8665 MSA standards. The built-in DOM (Digital Optical Monitoring) syncs perfectly with your network management tools, allowing you to accurately track real-time metrics like TX/RX power, module temperature, and voltage. By
admin on
2025-05-19
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494648
467909
K***z
Greece
Verified
Purchase
5 .0
2025-10-26
We integrated 50 of these LQ-M85200-SR4C units into our enterprise data center upgrade. The built-in 200G PAM4 DSP drastically reduced latency, and DOM monitoring keeps our proactive maintenance easy. Highly recommend for switch-to-switch links!
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494648
467904
D***g
South Africa
Verified
Purchase
5 .0
2024-11-22
Upgraded our storage area network with these 200G QSFP56 modules. The uncooled 4-channel PIN photodetector handles MPO-12 parallel lanes beautifully. Zero link flaps over 80 meters of OM4, fulfilling all our corporate hardware standards.
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494648
467886
T***t
Philippines
Verified
Purchase
5 .0
2023-06-27
The shopping experience is amazing. The Account Manager is so nice and considerate. She helped a lot during the purchaing.Even after I placed my order, she contuined to send emails to inform me about the logistic.
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494648
467896
R***h
Canada
Verified
Purchase
5 .0
2022-12-25
The seller at l-p.com was so helpful and prompt with their responses that it made the whole process really easy. and they proved accurate upon delivery. Highly recommend!
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