ARISTA OSFP-400G-PLR4 400GBASE-PLR4 Parallel Long Reach transceiver up to 10km over parallel SMF The 400G-PLR 4 can break out to 4 x 100G and interop with 4 x 100G-LR QSFPs
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OSFP-400G-PLR4
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OSFP-400G-PLR4 Overview
ARISTA OSFP-400G-PLR4 400gbase-plr4 Parallel Long Reach Transceiver Up To 10km Over Parallel Smf The 400g-plr 4 Can Break Out To 4 X 100g And Interop With 4 X 100g-lr Qsfps
Summary Description
ARISTA OSFP-400G-PLR4 400GBASE-PLR4 Parallel Long Reach transceiver up to 10km over parallel SMF The 400G-PLR 4 can break out to 4 x 100G and interop with 4 x 100G-LR QSFPs
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Frequently Asked Questions (FAQs)
What is the primary use case for the Arista OSFP-400G-PLR4 transceiver? +
The Arista OSFP-400G-PLR4 is a high-performance 400GBASE-PLR4 transceiver designed for high-density data center interconnects and core routing applications. It is specifically optimized for single-mode fiber deployments, enabling reliable, high-speed 400Gbps connectivity over distances of up to 10 kilometers, making it ideal for campus-wide links or medium-range backhaul requirements.
Does the OSFP-400G-PLR4 support breakout configurations for lower-speed connections? +
Yes, this transceiver utilizes MPO-12 connectivity, which supports 4x100G breakout applications. By leveraging the parallel optics architecture, network architects can aggregate or fan out connections to existing 100G infrastructure, providing significant flexibility when transitioning your network fabric from 100GbE to 400GbE without requiring a complete hardware overhaul.
What type of optical interface does the Arista OSFP-400G-PLR4 require? +
This module features an MPO-12 optical interface designed for use with single-mode fiber (SMF) cabling. It is critical to ensure that your existing fiber plant is terminated with MPO connectors to maintain signal integrity. The transceiver uses eight of the twelve fibers to deliver full-duplex 400G throughput across the link.
How does the OSFP form factor differ from QSFP-DD in terms of thermal performance? +
The OSFP form factor is engineered with integrated heat sinks and a more robust design to facilitate superior thermal management compared to smaller form factors. This makes the OSFP-400G-PLR4 exceptionally reliable in high-density chassis environments where airflow might be constrained, ensuring consistent performance even under sustained maximum load.
Is the Arista OSFP-400G-PLR4 compatible with third-party network switches? +
While these transceivers are optimized for Arista networking hardware, they are built to adhere to industry-standard OSFP MSA specifications. Generally, they will function in any switch port that supports the 400G-PLR4 standard, provided the switch firmware does not restrict the use of non-branded optics. Verify your switch compatibility list before integration.
What is the maximum reach of the Arista OSFP-400G-PLR4 over single-mode fiber? +
This module is rated for transmission distances of up to 10 kilometers over single-mode fiber (OS2). It maintains high signal quality over this reach by utilizing PAM4 modulation, which provides the necessary spectral efficiency for long-range 400G transport. It is the preferred choice for reliable, extended-reach data center connectivity.
Are there specific power requirements I should account for when installing this 400G module? +
The OSFP-400G-PLR4 is designed to operate within the standard power budget for OSFP modules. However, because 400G optics draw more power than their 100G predecessors, you should ensure your switch power supply units have sufficient overhead. Always check the total port power consumption in your switch management interface to prevent exceeding thermal or power limits.
How do I ensure the optical connectors remain clean for this 400G transceiver? +
Given the sensitivity of 400G PAM4 signals to return loss and debris, we strongly recommend using specialized MPO fiber inspection and cleaning tools. Even microscopic dust particles on the MPO interface can cause significant signal degradation or link instability. Regular cleaning is a best practice for maintaining peak performance in your high-speed optical fabric.
Does BuyRouterSwitch.com offer bulk pricing for large-scale data center projects? +
Absolutely. For organizations planning large-scale deployments or infrastructure upgrades, we offer competitive bulk quoting services. Our sales team is equipped to provide tailored pricing structures based on the volume and frequency of your requirements, ensuring you receive the best possible value for your entire project scope.
Why should I source my Arista networking hardware exclusively through BuyRouterSwitch.com? +
We provide a streamlined procurement experience focused on industry-leading reliability and product authenticity. By sourcing directly from our extensive inventory, you gain access to expert-vetted networking components and dedicated professional support. We prioritize the needs of enterprise IT managers by maintaining deep stock levels and providing a secure, efficient ordering process for critical networking hardware.
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