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A-O400-Q400-3M

The Arista A-O400-Q400-3M is a 3-meter active optical cable (AOC) designed to provide high-speed 400G connectivity between QSFP-DD ports. This reliable interconnect solution is ideal for high-density data center environments, offering a seamless, plug-and-play transition for your high-performance networking infrastructure.

SKU: A-O400-Q400-3M Brand: Product ID: 377391
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Description

Arista A-O400-Q400-3M Overview

The A-O400-Q400-3M is a high-performance direct attach copper cable designed to bridge 400G QSFP-DD interfaces within high-density data center environments. This specific A-O400-Q400-3M assembly features a three-meter length, providing the ideal reach for connecting top-of-rack switches to server clusters with minimal latency. Engineered for reliability in used hardware markets, this robust cable ensures signal integrity while maintaining a flexible form factor for complex cable management. Its passive design eliminates the need for external power, making it a cost-effective solution for scaling your existing network infrastructure.

Arista A-O400-Q400-3M Technical Details

The A-O400-Q400-3M utilizes advanced twinaxial copper shielding to effectively reduce electromagnetic interference during high-speed data transmission. Supporting full-duplex operation, the hardware is optimized for throughput-intensive applications that demand consistent performance across the entire three-meter span. Each connector is precision-molded to provide a secure, low-loss physical connection between compatible Arista networking ports. By choosing this pre-owned component, administrators can achieve enterprise-grade connectivity at a fraction of the cost of new equipment.

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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