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QDD-400G-XDR4-S

The Arista QDD-400G-XDR4-S is a 400GBASE-XDR4 QSFP-DD optical transceiver designed for high-speed, single-mode fiber connectivity over distances up to 2 kilometers. This high-performance module is an ideal solution for data centers requiring reliable, low-latency 400GbE uplinks in a compact, power-efficient form factor.

SKU: QDD-400G-XDR4-S Brand: Product ID: 377514
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Description

Arista QDD-400G-XDR4-S Overview

The QDD-400G-XDR4-S is a high-performance 400G QSFP-DD optical transceiver designed by Arista to facilitate rapid data transmission across enterprise and data center networks. This module utilizes advanced optics to provide reliable connectivity over single-mode fiber, making the QDD-400G-XDR4-S an ideal solution for upgrading legacy infrastructure to modern bandwidth standards. As a pre-owned component, this unit is rigorously tested to ensure it maintains the signal integrity and low latency required for demanding high-speed routing environments.

Arista QDD-400G-XDR4-S Technical Details

Engineered for efficiency, the QDD-400G-XDR4-S features a compact form factor that allows for high-density port configurations on compatible Arista switches and routers. It operates within standard power envelopes while supporting MPO-12 connectivity to streamline your physical cabling architecture. By choosing this hardware, network engineers gain a cost-effective path to scaling throughput without sacrificing the stability of their existing backplane. This transceiver remains a versatile choice for professionals seeking robust, field-proven performance in their networking hardware deployments.

Who We Are
 
ROC Telecom is a family-owned, Texas-based company specializing in helping businesses unlock value from their networking and telecom equipment. From routers and switches to optical gear and more, we provide a seamless solution for businesses looking to sell, recover assets responsibly, or buy quality-tested equipment at competitive prices.
 
What We Do
 
We make it easy to:
  • Sell Used Equipment: Get a quick, hassle-free quote and maximize the value of your old IT gear.
  • Buy Certified Networking Equipment: Access affordable, quality-tested equipment from top brands like Cisco, Juniper, Ciena, Fujitsu, Infinera and more.
Why Choose ROC Telecom?
  • Expertise You Can Trust: 15 years of experience in asset recovery and resale.
  • Sustainable IT Solutions: Reduce waste and support environmentally responsible practices.
  • Competitive Pricing: Fair, fast, and accurate valuations for all your equipment.
  • Free Shipping Logistics: Fast, secure, and hassle-free shipping or pickup options for buyers and sellers.
Our Process
  1. Submit a Request: You can use the “Buy” or “Sell” buttons above to get started — or fill out a form, call us at 585-406-1248, or email bailey@roctelecom.com. Whatever’s easiest for you, we’ll make it quick and hassle-free.
  2. Quick Evaluation: We’ll assess your equipment—whether you’re looking to sell it or find the right gear for your needs—and provide a fair offer.
  3. Simple Logistics: Fast, secure, and straightforward shipping or pickup solutions.
  4. Value Delivered: Recover funds from unused equipment or save on quality-tested networking and telecom gear.
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