Arista QSFP-40G-LRL4 Compatible 40GBASE-LRL4 QSFP+ Transceiver Module

Name: Arista QSFP-40G-LRL4 Compatible 40GBASE-LRL4 QSFP+ Transceiver Module
Brand: Arista
SKU: QSFP-40G-LRL4
Price: 36.80 USD
Availability: InStock
Rating: 5 (15 reviews)

Mfr. Part #: QSFP-40G-LRL4

Brand: Arista

Condition: Refurbished

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QSFP-40G-LRL4

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overview

specifications

faqs

reviews

overview

QSFP-40G-LRL4 Overview

ARISTA QSFP-40G-LRL4 Compatible 40gbase-lrl4 Qsfp+ Transceiver Module.

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specifications

Specifications

Overview

Condition	Refurbished
Brand	Arista
Stock	In Stock

Key Features

Product Type	Qsfp+
Mfg. Part Number	Plug-in Module

Networking

Network Technology	40gbase-lrl4
Ethernet Technology	40 Gigabit Ethernet

faqs

Frequently Asked Questions

What is the maximum transmission distance supported by the Arista QSFP-40G-LRL4 transceiver? +

The Arista QSFP-40G-LRL4 is specifically engineered for 40GbE deployments reaching up to 1 kilometer over single-mode fiber. It utilizes WDM technology to multiplex four wavelengths, making it an ideal intermediate reach solution for data center interconnects or campus backbones where standard short-range SR4 optics are insufficient and long-haul LR4 modules are overkill.

Which Arista switches are compatible with the QSFP-40G-LRL4 module? +

This transceiver is designed to integrate seamlessly into Arista 7000 series platforms that feature QSFP+ ports. To ensure optimal performance and avoid link errors, we recommend verifying your switch model's specific optics compatibility matrix. It is optimized for Arista’s proprietary ecosystem, ensuring full feature support and monitoring capabilities within the Arista EOS software environment.

How does the QSFP-40G-LRL4 differ from a standard QSFP-40G-LR4 module? +

The primary difference lies in the reach and power budget. While the LR4 is designed for distances up to 10 kilometers, the LRL4 is optimized for a 1-kilometer reach. This allows for a more cost-effective implementation in scenarios where you do not require the higher link budget of full LR4 optics, saving on both power consumption and initial hardware investment.

Can I use the Arista QSFP-40G-LRL4 for 4x10G breakout configurations? +

The Arista QSFP-40G-LRL4 is a 40GbE-capable transceiver designed for high-density uplink and backbone connectivity. Unlike some SR4 models that support breakout, the LRL4 is typically utilized for high-bandwidth 40G aggregate links. Please consult your specific switch configuration guide to see if your hardware supports port-splitting functionality for this particular transceiver model.

What type of fiber optic cabling is required for the QSFP-40G-LRL4? +

This module requires single-mode fiber (SMF) cabling with LC duplex connectors. Because it uses wavelength division multiplexing to transmit data, high-quality fiber patch cables are recommended to minimize insertion loss and maintain signal integrity over the 1-kilometer distance. Always ensure your fiber end-faces are clean before installation to prevent dust-related performance degradation.

Does the QSFP-40G-LRL4 require specific configuration in Arista EOS? +

Once inserted into a supported QSFP+ port, Arista EOS typically recognizes the module automatically. You may need to ensure the port speed is correctly configured to 40Gbps. The device provides digital optical monitoring (DOM) information, which allows network administrators to monitor real-time parameters like temperature, transmit/receive power, and supply voltage directly from the command line interface.

Is the QSFP-40G-LRL4 suitable for high-density leaf-spine architecture? +

Absolutely. This transceiver is perfectly suited for leaf-spine architectures where high-speed interconnects are required between switches within the same facility or across adjacent data halls. Its form factor allows for high-density port configurations, helping you maintain a scalable and low-latency fabric while utilizing your existing single-mode fiber infrastructure effectively.

What power consumption should I anticipate when deploying Arista QSFP-40G-LRL4 modules? +

The QSFP-40G-LRL4 is designed for high efficiency, typically consuming less than 3.5 watts of power. When planning your chassis power budget, especially in fully populated switches, account for this power draw per port to ensure your switch power supplies remain within their operational limits. This efficiency helps reduce the overall heat load in your server racks.

How can I obtain a bulk quote for multiple Arista QSFP-40G-LRL4 units? +

For large-scale infrastructure projects requiring multiple units, our sales team is ready to provide competitive volume pricing. Simply reach out to the BuyRouterSwitch.com sales department with your specific quantity requirements, and we will prepare a tailored quote that reflects current market availability and bulk discounts to help you stay under budget for your network upgrade.

Why should I source my Arista networking hardware from BuyRouterSwitch.com? +

BuyRouterSwitch.com is a trusted source for professional-grade networking equipment. We specialize in providing authentic hardware that meets strict enterprise standards. By choosing us for your Arista QSFP-40G-LRL4 needs, you benefit from our streamlined procurement process, expert knowledge of the hardware ecosystem, and our commitment to providing secure ordering experiences for IT departments and procurement professionals worldwide.

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