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QDD-400-CU3M

The Cisco QDD-400-CU3M is a 400G QSFP-DD passive direct-attach copper (DAC) twinax cable measuring 3 meters in length. This high-speed interconnect provides a reliable, low-latency solution for short-reach rack-to-rack data center connectivity.

SKU: QDD-400-CU3M Brand: Product ID: 390692
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Description

Cisco QDD-400-CU3M Overview

The QDD-400-CU3M is a high-performance 400G QSFP-DD passive copper direct-attach cable designed for short-reach data center interconnects. Engineered by Cisco to ensure reliable signal integrity, the QDD-400-CU3M facilitates seamless high-speed connectivity between switches, routers, and servers. This robust cable assembly features a 3-meter length, making it an ideal solution for rack-to-rack or top-of-rack deployments where low latency is critical. By choosing this pre-owned hardware, network administrators can achieve enterprise-grade throughput while effectively managing infrastructure costs.

Cisco QDD-400-CU3M Technical Details

The QDD-400-CU3M utilizes advanced shielding technology to minimize electromagnetic interference, ensuring consistent data transmission across all eight high-speed lanes. It is fully compliant with industry-standard QSFP-DD MSA specifications, allowing for plug-and-play compatibility with a wide range of Cisco networking platforms. This passive copper cable requires no additional power consumption, which helps reduce the overall thermal load within dense server environments. Its durable connector housing and high-quality cabling provide the mechanical stability necessary for long-term operational reliability in your production network.

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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