Arista QDD-400G-XDR4 400GBASE-XDR4 QSFP-DD Transceiver Up to 2km Over Parallel SMF
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QDD-400G-XDR4
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QDD-400G-XDR4 Overview
ARISTA QDD-400G-XDR4 400gbase-xdr4 Qsfp-dd Transceiver Up To 2km Over Parallel Smf.
Summary Description
Arista QDD-400G-XDR4 400GBASE-XDR4 QSFP-DD Transceiver Up to 2km Over Parallel SMF
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Frequently Asked Questions (FAQs)
What is the primary application for the Arista QDD-400G-XDR4 transceiver? +
The Arista QDD-400G-XDR4 is a high-density 400G QSFP-DD module designed for data center interconnects and high-capacity backbone networks. It specifically leverages PAM4 modulation to support 400G Ethernet links over single-mode fiber, making it an ideal choice for hyperscale environments requiring low-latency connectivity and high-throughput data transmission between leaf and spine switches.
What kind of fiber optic cabling is required for the QDD-400G-XDR4? +
This module is designed for use with single-mode fiber (SMF) infrastructure. It utilizes an MPO-12 connector interface, which is optimized for parallel optics deployment. Ensure your existing structured cabling utilizes single-mode MPO/MTP trunks to maintain the signal integrity and reach specifications required for consistent 400G performance across your campus or enterprise data center architecture.
Does the QDD-400G-XDR4 support breakout configurations? +
Yes, the QDD-400G-XDR4 supports breakout capabilities, allowing a single 400G port to be split into multiple lower-speed connections if the host switch software and hardware configuration permit. This versatility is highly beneficial for network architects looking to transition gradually from 100G to 400G infrastructure while maximizing port density on their existing Arista switch fabric.
What is the maximum reach of the Arista QDD-400G-XDR4 module? +
The QDD-400G-XDR4 is engineered to provide reliable transmission over distances reaching up to 500 meters. This specific range makes it an excellent solution for intra-data center connectivity or connecting equipment located within the same campus facility. It balances the need for high-speed fiber throughput with the cost-effective power profiles required for shorter-reach optical links.
How do I manage or monitor the health of this QSFP-DD module? +
You can monitor the module through the standard Command Line Interface (CLI) of your Arista switch. The transceiver supports Digital Optical Monitoring (DOM) features, providing real-time data on optical input and output power, laser bias current, and temperature. These metrics are critical for proactive troubleshooting and ensuring the link remains within the manufacturer's recommended operating parameters.
Are there specific power requirements for using the Arista QDD-400G-XDR4? +
QSFP-DD modules typically have higher power consumption profiles than previous form factors due to their advanced signal processing capabilities. It is essential to ensure that your switch chassis has sufficient power budget and cooling capacity configured for the total density of high-speed transceivers you plan to install. Always verify the power consumption specifications against your specific switch's datasheet before full-scale deployment.
Is the Arista QDD-400G-XDR4 compatible with third-party switch platforms? +
While the QDD-400G-XDR4 is designed and optimized for Arista networking hardware, its interoperability with other vendor platforms depends on the specific port programming and vendor-lock policies of your switch. For the most stable and consistent network performance, we recommend using this module within Arista environments to ensure full compliance with established signal integrity and proprietary management protocols.
What physical form factor does the QDD-400G-XDR4 utilize? +
This product uses the QSFP-DD (Quad Small Form-factor Pluggable Double Density) form factor. This industry-standard design doubles the number of lanes available compared to traditional QSFP28 modules, allowing for the increased throughput required for 400G operations. The QSFP-DD interface is also backward compatible with standard QSFP28 modules in many switch configurations, providing a path for scalable network growth.
How can I obtain a competitive quote for bulk orders of Arista transceivers? +
BuyRouterSwitch.com specializes in supporting large-scale enterprise infrastructure rollouts. If you require a bulk quote for QDD-400G-XDR4 modules, please submit your request through our online quote portal or contact our sales team directly. We are experienced in handling high-volume procurement requests and can provide customized pricing and lead-time estimates tailored to your specific project size and budgetary requirements.
Why should I choose BuyRouterSwitch.com for my Arista optical requirements? +
We provide a streamlined procurement experience focused on reliability and industry expertise. Our platform is designed for enterprise IT managers who demand authentic networking hardware and efficient order processing. By choosing BuyRouterSwitch.com, you benefit from our dedicated focus on enterprise-grade connectivity solutions and a secure, transparent purchasing process that ensures you receive the exact hardware necessary to maintain your network’s uptime.
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