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QSFP-40G-LR4-S=

The Cisco QSFP-40G-LR4-S= is a high-performance 40GBASE-LR4 QSFP+ transceiver module designed for long-reach fiber optic connectivity up to 10 kilometers. This reliable, hot-swappable interface is an ideal solution for extending high-speed network backbones over single-mode fiber infrastructure.

SKU: QSFP-40G-LR4-S= Brand: Product ID: 395012
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Description

Cisco QSFP-40G-LR4-S= Overview

The QSFP-40G-LR4-S= is a high-performance Cisco transceiver module designed to provide reliable 40G connectivity over long-range single-mode fiber optic cables. This compact, hot-swappable component is ideal for data centers and enterprise networks that require robust throughput across distances of up to 10 kilometers. By choosing the QSFP-40G-LR4-S= for your infrastructure, you ensure seamless compatibility with a wide range of Cisco switches and routers. This used hardware offers a cost-effective solution for scaling your network capacity without compromising on signal integrity.

Cisco QSFP-40G-LR4-S= Technical Details

Engineered with advanced WDM technology, the QSFP-40G-LR4-S= multiplexes four data channels into a single fiber strand to maximize bandwidth efficiency. It operates at a wavelength of 1310nm and utilizes a standard LC duplex connector for straightforward integration into existing cabling environments. The module supports digital optical monitoring, allowing administrators to track vital performance metrics like temperature and voltage in real-time. This unit is built to meet rigorous industry standards, ensuring that your secondary market investment delivers consistent, high-speed performance for demanding networking applications.

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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