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by Arista
Product Line: Arista QSFP-40G-PLR4
Product Type: Transceiver
Original price $416.00 - Original price $1,674.00
Original price
$416.00 - $1,674.00
Current price $1,674.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The QSFP-40G-PLR4 Arista module is designed for long-distance communication over single-mode fiber with a wavelength of 1310nm and supports a maximum distance of 10km. It features an MPO connector, adheres to SFF-8436 compliance, and incorporates Digital Optical Monitoring (DOM) for enhanced performance monitoring. This module operates within a commercial temperature range of 0 to 70 Celsius, supports a data rate of up to 11.2 Gb/s per channel, and is designed for low power consumption with a maximum of 3500 mW.

Key Feature for the QSFP-40G-PLR4

  • What is the wavelength used by the Single-mode Fiber?
    The wavelength used is 1310nm.
  • Can the SFF-8436 compliant module support distances up to 10km?
    Yes, it can support distances up to 10km.
  • What type of connector does this module use?
    It uses an MPO Connector.
  • Does the module have Digital Optical Monitoring (DOM) support?
    Yes, it supports Digital Optical Monitoring.
  • What is the operating temperature range for the module?
    The operating temperature range is from 0 to 70 Celsius.
  • Is the module hot pluggable?
    Yes, it is hot pluggable.
  • What type of casing does the module have?
    It has a metal casing with lower EMI.
  • What is the maximum data rate per channel that the module supports?
    The maximum data rate per channel is 11.2 Gb/s.
  • What are the power requirements for the module?
    The supply voltage ranges from -0.5 V to 4.0 V, and the module supply current is 1100 mA.
  • What environmental conditions can the module withstand?
    The module can withstand storage temperatures from -40°C to 85°C and operating humidity from 5% to 95%.

Product Review

The Arista QSFP-40G-PLR4 offers a notable advantage in long-distance networking applications with its 10km reach over single-mode fiber and a wavelength of 1310nm, ensuring compatibility with existing network infrastructures. However, the module's power dissipation of 3500 mW and supply current requirement of 1100 mA may present challenges in environments seeking energy efficiency. It benefits from digital optical monitoring for real-time status tracking, complies with SFF-8436 standards, and ensures reduced electromagnetic interference with its metal construction, alongside comprehensive ESD protection.


The Arista QSFP-40G-PLR4 is a high-performance, quad small form-factor pluggable (QSFP) transceiver designed for long-range optical communication over single-mode fiber. This module operates at a wavelength of 1310nm and supports a maximum data rate of 10.3125 Gb/s per channel, with a peak data rate capability of up to 11.2 Gb/s per channel. It is engineered to meet the rigorous demands of data centers and high-capacity networking infrastructure, providing a reliable solution for distances up to 10 kilometers. Constructed with an MPO connector, the QSFP-40G-PLR4 ensures a secure and efficient connection for your networking hardware. The module's design incorporates features aimed at optimizing performance and durability, including digital optical monitoring (DOM) support. This allows for real-time monitoring of the module's operational parameters, such as temperature, supply voltage, and laser bias current, enhancing the network's reliability and facilitating easier troubleshooting. Compliance with the SFF-8436 specification underscores the QSFP-40G-PLR4's adherence to industry standards for QSFP+ transceivers, guaranteeing compatibility and interoperability with a wide range of networking equipment. Moreover, the module is designed with attention to environmental and safety standards, being RoHS compliant and lead-free, which reflects a commitment to reducing the environmental impact of networking technologies. The QSFP-40G-PLR4 is built with a metal housing that lowers electromagnetic interference (EMI), ensuring that signal integrity is maintained even in densely packed networking environments. This, along with excellent electrostatic discharge (ESD) protection, safeguards the module against electrical damage, thereby enhancing its longevity and reliability. Operational efficiency is a key aspect of the QSFP-40G-PLR4, with a power dissipation of 3500 mW and a module supply current of 1100 mA. These specifications ensure that the module operates efficiently, minimizing energy consumption and heat production within networking devices. Key specifications include: - Hot pluggable capability, facilitating easy installation and maintenance without disrupting network operations. - An operating case temperature range from 0°C to 70°C, supporting deployment in a wide range of environmental conditions. - Storage temperature flexibility from -40°C to 85°C, and relative humidity tolerance from 5% to 95%, ensuring the module's resilience during storage and operation in varying climatic conditions. - An optical return loss tolerance of 12dB, contributing to the high signal quality and reliability of network connections. The QSFP-40G-PLR4's power requirements are modest, with a minimum supply voltage of -0.5 V and a maximum of 4.0 V, illustrating the module's compatibility with standard power supplies and its role in facilitating energy-efficient network operations. Combined with its comprehensive temperature, humidity, and storage specifications, the QSFP-40G-PLR4 is an exemplary solution for extending the reach of high-speed data communications while maintaining superior performance and reliability in demanding operational environments.


Part NumberArista QSFP-40G-PLR4
Fiber TypeSingle-mode
Transmission Wavelength1310 nm
Maximum Distance10 km
End Connector TypeMPO
DOM CapabilitySupported
Standard ComplianceSFF-8436
Temperature Range for Operation0°C to 70°C
Module InsertionHot Swappable
Enclosure MaterialEMI-reduced Metal
ESD SafeguardEnhanced
Environmental CertificationRoHS, Lead-Free
Minimum Supply Voltage-0.5 V
Maximum Supply Voltage4.0 V
Minimum Storage Temperature-40°C
Maximum Storage Temperature85°C
Minimum Operational Case Temperature0°C
Maximum Operational Case Temperature70°C
Minimum Humidity Level5%
Maximum Humidity Level95%
Maximum Data Rate Per Channel11.2 Gb/s
Module Supply Current Requirement1100 mA
Power Usage3.5 W
Standard Data Rate Per Channel10.3125 Gb/s
Optical Return Loss Min12 dB

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