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by Arista
Product Line: Arista QSFP-100G-LRL4 Transceiver
Product Type: Transceiver
Original price $518.00 - Original price $2,342.00
Original price
$518.00 - $2,342.00
Current price $518.00
Title: Used

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

Product Description

The QSFP-100G-LRL4 Arista module is a 100GBASE-LR4 QSFP28 type, designed for single-mode fiber with double LC connectors, enabling a maximum distance of 10km at a data rate of 103.125 Gbps. It operates on 1295.56, 1300.05, 1304.58, 1309.14 nm wavelengths using an EML LAN WDM TOSA laser, and supports FEC (Forward Error Correction) with an optical budget of 6.6 dB. The module has a power consumption of ≤3.5W, supports DDM/DOM, and is compliant with multiple standards including IEEE 802.3ba 100GBASE-LR4 and QSFP28 MSA.

Key Feature for the QSFP-100G-LRL4

  • What is the maximum data rate supported by the 100GBASE-LR4 QSFP28?
    It supports a data rate of 103.125 Gbps.
  • Can the 100GBASE-LR4 QSFP28 be used with multimode fiber?
    No, it is designed for use with Single-Mode Fiber (SMF) only.
  • What type of laser technology is used in this QSFP28 module?
    The module utilizes an EML LAN WDM TOSA laser.
  • What is the maximum optical budget of the module?
    The optical budget is 6.6 dB.
  • How far can the QSFP28 transmit data?
    It can transmit data up to a distance of 10km.
  • What connectors are used with this QSFP28?
    It uses double LC connectors.
  • Does the module support Forward Error Correction (FEC)?
    Yes, FEC is supported.
  • What is the power consumption of the QSFP28 module?
    The power consumption is ≤3.5W.
  • Is Digital Diagnostic Monitoring (DDM)/Digital Optical Monitoring (DOM) available?
    Yes, DDM/DOM is supported.
  • What are the compliance standards of the QSFP28?
    It is compliant with IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, RoHS-6, CE, QSFP28 MSA, SFF-8636, SFF-8665.

Product Review

The Arista QSFP-100G-LRL4 excels in providing a high data rate of 103.125 Gbps over single-mode fiber with a maximum distance of 10km, making it suitable for long-distance connections within data centers. It supports Forward Error Correction (FEC) and Digital Diagnostic Monitoring (DDM/DOM), enhancing reliability and ease of maintenance. However, its power consumption of up to 3.5W could be a drawback in environments where energy efficiency is a priority.


The Arista QSFP-100G-LRL4 is a high-performance, 100GBASE-LR4 QSFP28 transceiver designed for long-range optical communication over single-mode fiber (SMF). This transceiver module combines efficiency, high-speed data transmission, and compatibility with a broad range of networking hardware. It is engineered to provide reliable, high-capacity data transfer solutions for data centers, enterprise networking, and high-performance computing environments. With transmission and reception wavelengths spanning from 1295.56 nm to 1309.14 nm, the Arista QSFP-100G-LRL4 employs an EML LAN WDM TOSA laser to ensure optimal performance and signal integrity over distances of up to 10 kilometers. This capability makes it an ideal choice for organizations looking to extend their network without sacrificing speed or quality. The module supports a data rate of 103.125 Gbps, providing ample bandwidth for demanding applications and data-intensive tasks. It incorporates Forward Error Correction (FEC) to enhance signal integrity and reliability by reducing bit error rates. Additionally, Digital Diagnostics Monitoring (DDM) or Digital Optical Monitoring (DOM) features are supported, enabling real-time tracking of module performance parameters such as temperature, laser bias current, transmitted optical power, received optical power, and voltage. Key specifications include: - An optical budget of 6.6 dB. - Double LC connectors for secure and reliable physical connections. - Power consumption of less than or equal to 3.5W, optimizing energy efficiency in operations. Environmental resilience is ensured with a wide operating temperature range from 0°C to 70°C and storage temperature tolerances from -40°C to 85°C. Humidity resistance is robust, with the module capable of operating in environments with 0% to 85% relative humidity, ensuring reliability in varying climatic conditions.
  • Minimum extinction ratio of 4 dB, ensuring clear signal differentiation.
  • Powered by a +3.3V supply, it fits into standard power environments.
  • Compliance with multiple industry standards including Class 1 FDA, IEC60825-1 Laser Safety, IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, RoHS-6, CE, QSFP28 MSA, SFF-8636, and SFF-8665, ensuring broad compatibility and safety in deployment.
The chipset supporting the Arista QSFP-100G-LRL4 includes technology from leading manufacturers like Macom, Sumitomo, Samtech, Oclaro, Avago, and II-IV, which contributes to its high performance and reliability. Maximum launch power and transmitting power per lane are capped at 4.5 dBm, balancing power efficiency with signal strength. In summary, the Arista QSFP-100G-LRL4 transceiver module stands out for its long-range capability, supporting up to 10km over single-mode fiber with an efficient use of power and advanced error correction features. Its compliance with a wide array of standards and support for real-time diagnostics make it a versatile and reliable choice for extending high-speed network infrastructures.


Part NumberArista QSFP-100G-LRL4
Interface Type100GBASE-LR4 QSFP28
Wavelengths (Tx/Rx)1295.56, 1300.05, 1304.58, 1309.14 nm
Transmitter LaserEML with LAN WDM TOSA
Fiber CompatibilitySingle-Mode Fiber
Connector TypeLC Duplex
Link Budget6.6 dB
Maximum Reach10 km
Bit Rate103.125 Gbps
Forward Error CorrectionAvailable
Digital Diagnostic MonitoringAvailable
Maximum Power Draw<=3.5W
Operating Temperature Range0°C to 70°C
Storage Temperature Range-40°C to 85°C
Humidity Range (Operational)0% to 85%
Minimum Extinction Ratio4 dB
Operating Voltage+3.3V
Supported Chipset ManufacturersMacom, Sumitomo, Samtech, Oclaro, Avago, II-IV
Safety and Compliance StandardsClass 1 FDA, IEC60825-1 Laser Safety, IEEE 802.3ba/bm, RoHS-6, CE, QSFP28 MSA, SFF-8636, SFF-8665
Maximum Average Launch PowerEach Lane: 4.5 dBm
Peak Transmit PowerEach Lane: 4.5 dB

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