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QDD-400G-VSR4

The Arista QDD-400G-VSR4 is a 400G QSFP-DD transceiver module designed for high-speed, short-reach data center connectivity over multi-mode fiber. This reliable optical solution provides high-density bandwidth performance, making it an ideal, cost-effective choice for upgrading your existing network infrastructure.

SKU: QDD-400G-VSR4 Brand: Product ID: 377492
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Description

Arista QDD-400G-VSR4 Overview

The QDD-400G-VSR4 is a high-performance QSFP-DD optical transceiver designed specifically for ultra-short-reach 400GbE data center interconnects. This module utilizes advanced PAM4 modulation to deliver massive bandwidth across multi-mode fiber infrastructure while maintaining low power consumption. By integrating the QDD-400G-VSR4 into your existing Arista switching fabric, you ensure seamless compatibility and reliable high-speed data transmission. It serves as an essential component for network engineers looking to scale their leaf-spine architecture without sacrificing signal integrity.

Arista QDD-400G-VSR4 Technical Details

Engineered for demanding enterprise environments, the QDD-400G-VSR4 features a hot-swappable form factor that simplifies hardware upgrades and routine maintenance tasks. This transceiver supports MPO-12 connectivity, allowing for efficient deployment in dense rack configurations where space and airflow are critical. The hardware is built with robust internal components that provide consistent performance across a wide range of operating temperatures. Choosing this pre-owned module offers a cost-effective solution for expanding your network capacity while meeting rigorous industry standards for throughput and latency.

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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