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    Home / Products / Transceivers / 400G/800G/1.6T Ethernet Transceivers / 800G OSFP / 102575

    Arista OSFP-800G-2FR4 Compatible 2x 400GBASE FR4 Twin-port OSFP IHS/Closed Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Optical Transceiver Module

    Product No: 102575
    35 Reviews
    117 Sold
    US$ 1,255.50
    Compatible
    Transceivers type
    7 in real-time stock, 27 Jul, 2026

    Free Shipping over US$ 79.8

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    5-Year Warranty 1-Year Exchange
    Warranty
    Providing industry-leading limited lifetime warranty.
    Please check our warranty policy for details.
    Returns & Exchange
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    Please ensure that the item you're returning is repackaged with all the cords, adapters, and documentation included when you receive it.
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    Add to Cart Bulk Order Quotes 
    1. 8 electrical input/output channels x 106.25G PAM4 modulation
2. Support 800G to 2x 400G-FR4 application, no breakout cables required
3. Designed with two transmitter/receiver units, dual duplex LC connectors
4. EML + PIN Laser 
5. Max power consumption ≤16.5W
    See more

    Specifications

    Arista OSFP-800G-2FR4 Compatible 2x 400G FR4 800G OSFP PAM4 Optical Transceiver Module (1271nm, 1291nm, 1311nm, and 1331nm, 2km, 2x LC Connectors, SMF, 0℃ to +70℃, DDM)

     

    Arista OSFP-800G-2FR4 Compatible 2x 400G FR4 OSFP 800G transceiver module supports a max data rate of 850Gbps. It enables the fiber link of 2km over single-mode fiber (SMF) with dual LC duplex connectors. The 800 Gigabit Ethernet signal is carried over 4 wavelengths at 1271nm, 1291nm, 1311nm, and 1331nm. QSFPTEK manufactured  2x 400GBASE FR4 OSFP complies with IEEE 802.3cu-2021, IEEE P802.3ck D3.0, OSFP MSA HW Rev 4.1, CMIS Rev 5.0. DDM (digital diagnostics monitoring) function is supported on the 800G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) modulation, the FR4 OSFP achieves 800 Gigabit Ethernet through 8x 106.25 PAM4 Retimed 2x400GAUI-4 C2M electrical interface. The 800G FR4 OSFP is widely used for 800 gigabit Ethernet, data centers, and 800G to 2x 400G applications.

      

    Part Number QT-OSFP-800G-2FR4 Vendor Name QSFPTEK
    Form Factor OSFP Max Data Rate 850 Gbps (8x 106.25 Gbps)
    Wavelength 1271nm, 1291nm, 1311nm and 1331nm Distance 2km
    Connector Dual Duplex LC Cable Type SMF
    Transmitter Type EML Receiver Type PIN
    TX Power -3.2-4.4dBm Receiver Sensitivity < -7.2dBm
    Power Consumption ≤16.5W Modulation Format PAM4
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols IEEE 802.3cu-2021, IEEE P802.3ck D3.0, OSFP MSA HW Rev 4.1, CMIS Rev 5.0 Warranty 1 Year
    Quality Testing Program
    Optical Transceivers Testing

    Take a look at our test program to get the reliable and high-performance optical transceivers.

    Quality Certifications

    Features

    • 1. Advanced Technology
      Features PAM4 modulation technology and built-in DSP chip.
    • 2. Best Price and High Quality
      Based on self-producing capacity and rigorous testing, QSFPTEK can provide cost-effective products with high reliability and performance at a trade price.
    • 3. Protocols
      Complies with ICMIS Rev 4.0, IEEE 802.3bs, and OSFP MSA standard.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Scenario 1: 800G to 800G Direct Connectivity

     

    QT-OSFP-800G-FR4 Scenario 1 800G to 800G Direct Connectivity

     

      

    Scenario 2: 800G to 2x 400GE Connectivity

      

    QT-OSFP-800G-FR4 Scenario 2 800G to 2x 400GE Connectivity

    Product details

    8x 100Gbps PAM4 Modulation Technology

       

    Utilize 8x electrial lanes and 8x optical lanes modulated at 100G PAM-4 per lane. On the output side, it convert 8x 106.25Gb/s electrical signal to 8x 106.25Gb/s optical signals. On the receiver side, it convert 8x 100Gb/s optical signal to 8x 100Gb/s electrical signals.

     

      

       

    Easy 800G to 2x 400G breakout with OS2 SMFs

       

    The OSFP-800G-FR4 module is designed with dual duplex LC connectors, while each connector can connect to a physically separate 400G FR4 module via an OS2 duplex single-mode fiber. This enables 800G to 2x 400G breakout links without the need for using breakout fiber optic cables. 

     

     

     

    Various Switch Tests

     

    Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

     

    QSPFTEK LAB All Brands Switches Show

     

     

    Tested in The Host Device to Prove Interoperability

      

    Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

     

    QSFPTEK Test Rack

     

     

    Comprehensive Testing

     

    Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.

     

    QSFPTEK Test Devices

      

     

    800G OSFP Optical Transceivers Contrast Table

     

    Part Number

    QT-OSFP-800G-2VR4

    QT-OSFP-800G-2SR4

    QT-OSFP-800G-2DR4

    QT-OSFP-800GSi-2DR4

    Image

    Data Rate

    800G

    800G

    800G

    800G

    Optical Connector

    Dual MPO-12/APC

    Dual MPO-12/APC

    Dual MPO-12/APC

    Dual MPO-12/APC

    Cable Type

    MMF

    MMF

    SMF

    SMF

    Wavelength

    850nm

    850nm

    1310nm

    1310nm

    Reach

    50m

    100m@OM4 MMF

    60m@OM3 MMF

    500m

    500m

    Modulation

    PAM4

    PAM4

    PAM4

    PAM4

    Max Power Consumption

    < 16W

    < 13.5W

    < 16.5W

    < 16W

    Matching Transceivers

    QT-OSFP-400G-SR4

    QT-QSFP-DD-SR4

    QT-Q112-400G-SR4

    QT-OSFP-400G-SR4

    QT-QSFP-DD-SR4

    QT-Q112-400G-SR4

    QT-QSFP-DD-DR4

    QT-QSFP28-DR1

    QT-OSFP-400G-SR4

    QT-QSFP-DD-SR4

    QT-Q112-400G-SR4

    Application

    800G to 800G, 800G to 2x400G breakout, 800G to 4x200G breakout

    800G to 800G, 800G to 2x400G breakout, 800G to 4x200G breakout

    800G to 800G, 800G to 2x400G breakout, 800G to 8x100G breakout

    800G to 800G, 800G to 2x400G breakout, 800G to 4x200G breakout

    Part Number

    QT-OSFP-800G-2DR4-LPO

    QT-OSFP-800G-2XDR4

    QT-OSFP-800G-2FR4

    QT-OSFP-800G-2LR4

    Image

    Data Rate

    800G

    800G

    800G

    800G

    Optical Connector

    Dual MPO-12/APC

    Dual MPO-12/APC

    Dual Duplex LC/UPC

    Dual Duplex LC/UPC

    Cable Type

    SMF

    SMF

    SMF

    SMF

    Wavelength

    1310nm

    1310nm

    1271nm, 1291nm, 1311nm and 1331nm

    1271nm, 1291nm, 1311nm, and 1331nm

    Reach

    500m

    2km

    2km

    10km

    Modulation

    PAM4

    PAM4

    PAM4

    PAM4

    Max Power Consumption

    < 8W

    < 16.5W

    ≤ 16.5W

    < 15W

    Matching Transceivers

    QT-OSFP-400G-SR4

    QT-QSFP-DD-SR4

    QT-Q112-400G-SR4

    QT-QSFP-DD-DR4+

    QT-QSFP-DD-FR4

    QT-QSFP-DD-LR4

    Application

    800G to 800G, 800G to 2x400G breakout, 800G to 4x200G breakout

    800G to 800G, 800G to 2x400G breakout

    800G to 800G, 800G to 2x400G breakout

    800G to 800G, 800G to 2x400G breakout

    Questions & Answers

    • ALL (11)
    • 400G OSFP (1)
    • QT-QSFP-DD-800G-DR8 (1)
    • QT-OSFP-800G-2FR4 (2)
    • QT-OSFP-800G-2DR4 (1)
    • QT-QSFP-DD-800G-2FR4 (3)

    Customer Reviews

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    5 stars

    34 Reviews

    4 stars

    1 Reviews

    3 stars

    0 Reviews

    2 stars

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    1 stars

    0 Reviews

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    • ALL (16)
    • Premium Service (1)
    • High performance (3)
    • Excellent Quality (2)
    • Stable (3)
    • High reliability (2)
    • Customer Support (4)
    • Good Price (2)
    • Good Packaging (2)
    • Repurchase (1)
    • Compatibility (1)
    • Fast Delivery (1)
    • Ida Arabella United States of America
      2026-07-24

      The module slides into the port smoothly and locks firmly in place. During installation, there was no looseness or alignment issue, which made the deployment process much more efficient. Small details like this really matter when installing dozens of modules.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

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      0

    • Teka United States of America
      2026-07-09

      We've been running continuous load tests over single-mode fiber and latency is rock solid. Definitely a fraction of the OEM price without sacrificing reliability. Will be ordering more for the next rack expansion.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Daniel Holt United States of America
      2026-07-06

      This module was purchased as part of a network refresh, and it integrated smoothly with the rest of our hardware. We appreciated that the specifications on the product page accurately reflected what we received. After installation, the link initialized quickly and has remained reliable during continuous operation. It's a dependable option for organizations moving to higher-speed infrastructure.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Augus Thodore United States of America
      2026-07-03

      We added this module during a planned capacity upgrade, and it fit seamlessly into our existing deployment. The documentation was accurate, installation was straightforward, and everything worked as intended from day one.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Conrad Hart United States of America
      2026-06-26

      We compared several 800G options before ordering this one. The pricing was noticeably more competitive, and after deployment we didn't see any meaningful difference in performance. It offered a good balance between cost and functionality for our project.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

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      0

    • Bruno Raman United States of America
      2026-06-23

      The module feels well made, with a sturdy housing and clean finish. The pull tab is secure and easy to use, making installation and removal much more convenient during testing. Small details like these make a difference when working with multiple optics.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Jeremy Perkin United States of America
      2026-06-18

      Purchased this module for a lab validation project. Installation was straightforward, and the module was detected immediately after insertion. The build quality feels solid, and all units passed our initial testing without any issues.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Kenneth United States of America
      2026-06-10

      The packaging was excellent and every module arrived in perfect condition. Nice to see that level of attention on a large order.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Jeff Condon Austria
      2026-06-08

      I have great confidence in QSFPTEK. They consistently deliver on their promises and provide reliable service.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

      Helpful

      0

    • Emlyn United States of America
      2026-05-01

      We've reordered these multiple times, and the quality has been consistent with every shipment. That's important when you're deploying at scale.

      Transceivers typeAR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

      CompatibleArista

      Verified Purchase

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      0

    Video

    Resources

    • PDF Document
      QT-OSFP-800G-FR4 Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    Arista OSFP-800G-2FR4 Compatible 2x 400GBASE FR4 Twin-port OSFP IHS/Closed Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Optical Transceiver Module

    Compatible Arista

    Transceivers type AR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

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    Mark

    2023-12-15
    This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

    Verified Purchase

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    Arista OSFP-800G-2FR4 Compatible 2x 400GBASE FR4 Twin-port OSFP IHS/Closed Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Optical Transceiver Module
    US$ 1,255.50
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    AR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC
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    Arista OSFP-800G-2FR4 Compatible 2x 400GBASE FR4 Twin-port OSFP IHS/Closed Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Optical Transceiver Module

    Compatible Arista

    Transceivers type AR-OSFP-800G-2FR4 | 2km | Dual Duplex LC/UPC

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