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QDD-4X100G-FR-S

The Cisco QDD-4X100G-FR-S is a high-performance 400G QSFP-DD transceiver that breaks out into four 100G FR links, ideal for scalable, cost-effective data center connectivity—making it a smart choice for buyers seeking reliable used networking gear.

SKU: QDD-4X100G-FR-S Brand: Product ID: 127056
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Description

The Cisco QDD-4X100G-FR-S is a high-performance 400G transceiver module designed for data centers and enterprise networks requiring reliable, high-speed connectivity. This QSFP-DD (Quad Small Form-Factor Pluggable Double Density) module supports 400G to 4x100G breakout functionality, making it ideal for flexible network scaling. Built for single-mode fiber (SMF) with an FR4 interface, it operates over a wavelength of 1310nm and supports a maximum reach of up to 2 kilometers. Its hot-swappable design ensures easy deployment and maintenance, reducing downtime in mission-critical environments.

Equipped with four 100G PAM4 optical lanes, the Cisco QDD-4X100G-FR-S delivers exceptional data transmission efficiency while maintaining low power consumption. The module features a duplex LC connector, ensuring compatibility with existing fiber infrastructure. Designed for Cisco networking equipment, it integrates seamlessly with switches and routers that support QSFP-DD interfaces. Ideal for high-density networking applications, this transceiver provides a cost-effective solution for upgrading to 400G while maintaining backward compatibility with 100G 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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