The Arista QDD-400G-XDR4 Compatible LINK-PP optical transceiver delivers exceptional high-speed data transmission for modern data centers. This 400GBASE-XDR4 QSFP-DD module integrates advanced PAM4 modulation, operating at an aggregated 425 Gbps. Featuring a 1310nm wavelength and standard MPO-12/APC connector, it complies with IEEE 802.3bs and QSFP-DD MSA standards, ensuring robust, low-power network infrastructure scalability.
Arista Part Number
QDD-400G-XDR4
Vendor Name
LINK-PP
Form Factor
QSFP-DD
Max Data Rate
425Gbps
Wavelength
1310nm
Max Cable Distance
2km
Connector
MPO-12/APC
Media
SMF
Transmitter Type
EML
Receiver Type
PIN
Modulation (Electrical)
8x50G-PAM4
Modulation (Optical)
4x100G-PAM4
DDM/DOM
Supported
Operating Temperature Range
0°C to +70°C
Protocols
QSFP-DD MSA, CMIS Rev 4.0, IEEE 802.3bs
Warranty
5 Years
Key Features of Arista QDD-400G-XDR4 Compatible LINK-PP 400G QSFP-DD
Engineered for next-generation networks, the Arista QDD-400G-XDR4 Compatible LINK-PP features a highly efficient 10W maximum power dissipation and a robust 76-pin electrical interface. This hot-pluggable 400G QSFP-DD module supports dynamic 4x100G breakout connectivity, seamlessly bridging legacy 100G infrastructures with advanced 400G hyperscale environments flawlessly.
As a premium 400GBASE-DR4+ solution, the QDD-400G-XDR4 optical module utilizes a powerful EML laser and PIN detector combination. It guarantees exceptional signal integrity, reducing insertion loss across complex data center architectures while maintaining high-density 400G switching capacity.
QDD-400G-XDR4: 400G Connectivity for MAN Core Networks
Designed for robust backbone infrastructure, the QDD-400G-XDR4 accelerates metropolitan area network (MAN) and core network deployments. Its 425Gbps aggregate bit rate ensures seamless high-bandwidth data routing, offering telecommunications providers superior throughput for mission-critical enterprise communications.
QDD-400G-XDR4 Module with 1310nm Wavelength
Operating centrally at the 1310nm wavelength across four parallel lanes, this PAM4-enabled QDD-400G-XDR4 transceiver minimizes chromatic dispersion. This optimized 1310nm optical spectrum guarantees excellent transmission fidelity, making it an ideal choice for high-speed fiber optic networking.
QDD-400G-XDR4 Module Supporting 2km Transmission
The Arista QDD-400G-XDR4 Compatible LINK-PP successfully drives 400G Ethernet signals over single-mode fiber (SMF) up to a 2km distance. This extended reach effectively links spine and leaf switches, providing scalable interconnectivity for campus networks and large-scale data facilities.
QDD-400G-XDR4 Module with MPO-12/APC Interface
Featuring a high-precision MPO-12/APC optical connector, the QDD-400G-XDR4 minimizes return loss and prevents detrimental back-reflections. This APC angled physical contact ensures superior optical coupling efficiency, crucial for maintaining stable 400GBASE-XDR4 optical links within dense networking environments.
QDD-400G-XDR4 Module with DOM for Real-Time Monitoring
Equipped with Digital Optical Monitoring (DOM) via a Two-Wire Serial Interface, the QDD-400G-XDR4 allows administrators to track real-time operational parameters. IT teams can precisely monitor temperatures, Tx/Rx optical power levels, and voltages, ensuring proactive network maintenance.
The Arista QDD-400G-XDR4 Compatible LINK-PP module is backed by comprehensive industry certifications. This 400G optical transceiver guarantees supreme safety, global environmental compliance, and standardized networking quality for demanding enterprise deployments.
Every QDD-400G-XDR4 unit undergoes a rigorous quality testing program at the factory. We evaluate electrical and optical characteristics to ensure sustained performance under peak hyperscale data loads.
QDD-400G-XDR4 Quality Certifications
Fully compliant with international regulatory standards, the QDD-400G-XDR4 securely holds CE, FCC, UKCA, UL, REACH, and RoHS certifications, strictly adhering to Class 1 laser safety requirements.
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-400G-XDR4 Certified for Reliable Host-Device Compatibility
Built in accordance with QSFP-DD CMIS Rev 4.0 specifications, the QDD-400G-XDR4 delivers verified host-device interoperability, ensuring seamless integration with major OEM switches and routers without hardware conflicts.
Comprehensive laboratory assessments validate the optical and electrical integrity of the 400G transceiver, guaranteeing maximum reliability for uninterrupted, mission-critical network applications.
Optical Spectrum Test
Evaluates the 1310nm center wavelength to confirm perfect alignment and low chromatic dispersion.
Eye Pattern Test
Analyzes PAM4 signal modulation to guarantee excellent optical eye closure and TDECQ parameters.
Bit Error Rate Test
Verifies continuous data transmission over 2km SMF links to ensure ultra-low error probability.
Temperature Test
Confirms the transceiver operates reliably within the commercial case temperature range of 0~70°C.
Product Shipping for Arista QDD-400G-XDR4 Compatible LINK-PP 400G QSFP-DD
We deploy a highly professional global supply chain process to deliver your 400G QSFP-DD modules safely, utilizing specialized packaging for uncompromised optical component protection.
Anti-Static Protective Packaging
Each QDD-400G-XDR4 is sealed in premium ESD-safe bags preventing electrical damage.
Shock-Resistant Transport Protection
Secured within custom-molded foams to withstand extreme physical vibrations during transit.
Fast Order Processing and Dispatch
Expedited factory handling ensures your optical module inventory ships without delay.
Global Logistics and International Delivery
Partnered with top-tier couriers to provide swift, traceable worldwide destination deliveries.
Deploying this 400G QSFP-DD optical module within your cloud infrastructure is remarkably simple. Just plug the hot-swappable transceiver into a compatible 400G port, attach your MPO-12/APC fiber cable, and immediately unlock seamless 400 Gbps connectivity engineered for high-capacity 2km transmission.
QDD-400G-XDR4 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-400G-XDR4 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, it strictly adheres to all relevant industry standards, including QSFP-DD MSA, IEEE 802.3bs for 400GBASE-XDR4, and RoHS. You can deploy it with full confidence knowing it meets enterprise-grade compliance. By
admin
A:
It features an MPO-12/APC connector designed specifically for Single-Mode Fiber (SMF). This setup perfectly handles the 2km transmission distance, making it ideal for both direct 400G backbone connections and 4x100G breakout applications. By
admin
A:
Yes, we definitely support wholesale pricing! For large-scale data center interconnect or campus fiber network projects, our B2B sales team can provide highly competitive volume discounts. Just send us an inquiry with your required quantity. By
admin
A:
Absolutely! They are fully coded and tested for seamless equipment compatibility and interoperability across major brands like Cisco, Arista, Juniper, and Dell. You'll get zero compatibility warnings and accurate DOM/DDM telemetry right out of the box. By
admin
Please write comments with more than three
character.
495221
518107
C***z
Panama
Verified
Purchase
5 .0
2026-04-29
Replaced several failing OEM modules in our outdoor cabinet edge network. The working temperature stays well within spec despite harsh ambient heat. Truly an enterprise-grade IEEE compliant 400GBASE-XDR4 module. Highly recommend!
Please write comments with more than three
character.
495221
518098
R***l
Argentina
Verified
Purchase
5 .0
2026-04-07
We just finished a massive machine room batch deployment for data center interconnectivity. The MPO-12/APC optical interface was a breeze to clean and connect. 400G PAM4 signals stayed perfectly synced even near max 2km distance.
United States · English · USD
