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A-D400-Q400-20M

The Arista A-D400-Q400-20M is a 20-meter QSFP-DD to QSFP-DD active optical cable (AOC) designed for high-speed 400G connectivity between data center switches and servers. This reliable, plug-and-play cabling solution offers a low-latency, integrated fiber interconnect ideal for extending reach in high-density networking environments.

SKU: A-D400-Q400-20M Brand: Product ID: 377770
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Description

Arista A-D400-Q400-20M Overview

The A-D400-Q400-20M is a high-performance active optical cable assembly engineered by Arista Networks to provide reliable, high-speed data transmission between network switches and server interfaces. This specific A-D400-Q400-20M component is designed to bridge 400G QSFP-DD ports, ensuring seamless integration within dense data center environments that require low-latency connectivity. By utilizing advanced fiber optic technology, this cable offers a robust solution for demanding enterprise networking tasks where signal integrity is paramount. Its durable construction makes it an ideal choice for professionals seeking cost-effective, pre-owned hardware that maintains the rigorous performance standards expected from Arista equipment.

Arista A-D400-Q400-20M Technical Details

The A-D400-Q400-20M features a 20-meter reach, providing the necessary length for complex rack-to-rack configurations without the signal degradation often found in copper alternatives. It is fully compatible with industry-standard QSFP-DD form factors, supporting high-bandwidth throughput for modern cloud and storage architectures. This cable is optimized for energy efficiency, reducing the overall power footprint of your networking infrastructure while maintaining high-speed data integrity. When purchasing this hardware, you are acquiring a precision-engineered cable that has been built to withstand the operational stresses of continuous, high-traffic network environments.

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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