Arista QSFP-40G-PLRL4 40G 4x1310nm LR QSFP+ Optic Transceiver
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QSFP-40G-PLRL4
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QSFP-40G-PLRL4 Overview
ARISTA QSFP-40G-PLRL4 40g 4x1310nm Lr Qsfp+ Optic Transceiver.
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Frequently Asked Questions
What is the maximum transmission distance for the Arista QSFP-40G-PLRL4 module? +
The Arista QSFP-40G-PLRL4 is designed for high-speed connectivity over single-mode fiber. It supports link lengths of up to 1 kilometer using MPO connectors. This makes it an ideal solution for inter-rack connections or reaching across medium-sized data centers while maintaining signal integrity and high bandwidth performance for your 40G infrastructure.
Does the QSFP-40G-PLRL4 support breakout configurations for 10G connectivity? +
Yes, this transceiver is capable of 4x10G breakout applications. By utilizing the MPO interface, you can fan out the 40G port into four separate 10G streams, provided your Arista switch hardware and software configuration support the breakout mode. This versatility allows you to maximize port density and manage your 10G/40G migration path efficiently.
What type of optical fiber cabling is required for this Arista transceiver? +
This module operates over single-mode fiber (SMF) cabling. It is specifically optimized for applications requiring extended reach beyond the limitations of multimode fiber. When deploying the QSFP-40G-PLRL4, ensure your infrastructure utilizes compatible OS2 single-mode patch cables with MPO/MTP connectors to guarantee the optical budget remains within specified operating parameters for reliable data transmission.
Is the QSFP-40G-PLRL4 compatible with third-party switches or only Arista hardware? +
While this transceiver is engineered specifically for Arista Networks switching and routing platforms to ensure seamless integration and performance, it is generally compliant with industry-standard QSFP+ form factor specifications. However, for maximum stability and to avoid potential compatibility alarms or firmware-based restrictions, we recommend using this module within validated Arista ecosystems.
What are the power consumption characteristics of the QSFP-40G-PLRL4 module? +
This QSFP+ module is designed for power efficiency within high-density environments. It typically consumes less than 3.5 Watts, adhering to standard QSFP+ power consumption profiles. This low thermal footprint helps reduce overall cooling requirements in your data center, allowing for higher port density on your switch line cards without exceeding power budget constraints.
Can I use the QSFP-40G-PLRL4 in a 100G QSFP28 port? +
The QSFP+ form factor is physically compatible with most QSFP28 ports; however, you must ensure your switch supports downward compatibility to the 40G speed rate. While the physical insertion is possible, the switch port must be manually or automatically configured to operate in 40G mode rather than its native 100G capacity to achieve a successful link.
What is the operating temperature range for the Arista QSFP-40G-PLRL4? +
This transceiver is built to operate within standard commercial temperature ranges, typically between 0°C and 70°C. It is designed for use in climate-controlled data center environments. To ensure long-term reliability and optical performance, verify that your switch chassis is properly ventilated and that the ambient air intake is maintained within these recommended operational specifications.
How does the PLRL4 module manage optical signaling compared to standard LR4? +
The PLRL4 utilizes parallel optics via an MPO interface, sending four parallel lanes of 10G data over a single-mode ribbon cable. In contrast, standard LR4 uses WDM (Wavelength Division Multiplexing) over a duplex LC connector. The PLRL4 is often the preferred, cost-effective choice for shorter reach 40G single-mode connectivity within a single facility.
How can I obtain a bulk quote for multiple Arista QSFP-40G-PLRL4 modules? +
If you are planning a large-scale data center upgrade or require a substantial quantity of Arista transceivers, our team at BuyRouterSwitch.com is ready to assist. Simply reach out through our bulk quote request form or contact our sales department directly. We provide competitive pricing structures tailored to high-volume procurement needs, helping you manage your hardware acquisition costs effectively.
Why should I purchase my networking hardware from BuyRouterSwitch.com? +
BuyRouterSwitch.com is a trusted source for enterprise-grade networking components. We prioritize authenticity and quality, ensuring that every Arista QSFP-40G-PLRL4 module you receive meets rigorous industry standards. Our platform offers a secure, streamlined ordering experience designed for IT procurement professionals who value reliability, professional support, and efficient processing for their critical infrastructure projects.



























