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    Home / Products / Transceivers / 400G/800G Ethernet Transceivers / 800G OSFP / 202935

    Cisco OSFP-2X400G-FR4 800G 2x 400GBASE-FR4 Twin-port OSFP IHS/Open Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Ethernet Optical Transceiver Module

    Product No: 202935
    0 Reviews
    18 Sold
    US$ 1,255.50
    Compatible
    Transceivers type
    12 in real-time stock, 24 Jun, 2026

    Free Shipping over US$ 79.8

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    5-Year Warranty 1-Year Exchange
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    Providing industry-leading limited lifetime warranty.
    Please check our warranty policy for details.
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    Add to Cart Bulk Order Quotes 
    1. 100% verified by the original
2. Open finned top design for Ethernet air-cooled switches
3. Support 2x400GE and 800GE
4. 8x 1330nm EML lasers
5. Ideal for HPC, AI, and cloud DC
    See more

    Specifications

    Cisco OSFP-2X400G-FR4 Compatible 800G 2x 400G FR4 Twin-port OSFP IHS/Open Finned Top PAM4 Optical Transceiver Module (1271nm,1291nm,1311nm,1331nm, 2km, Dual Duplex LC/UPC Connector, SMF, 0℃ to +70℃, DDM)

     

    Cisco OSFP-2X400G-FR4 compatible 800G DR8 OSFP is an Ethernet transceiver module with dual duplex LC/UPC connectors. It enables the fiber link of 2km at 800Gb/s or  2x400Gb/s over single-mode fiber (SMF). With the Pulse-amplitude Modulation (PAM4) modulation, the dual Far Reach 8-channel (2xFR4) OSFP adopts 8 channels of 100G-PAM4 electrical and optical modulation based on the CWDM4 serial multiplexed 1310nm.

     

    The OSFP is open finned top with an integrated heat sink (IHS), designed for Ethernet air-cooled switches. It is compliant with IEEE 802.3 400GBASE-FR4 Ethernet specs and OSFP MSA. It is used for switch & router connection, data centers, and Other 800G interconnect requirements. Featuring high performance, low power consumption, and low latency, it is ideal for HPC, AI, and cloud DC.

     

    Part Number QT-OSFP-800G-2FR4-IHS Vendor Name QSFPTEK
    Form Factor Twin-port OSFP-IHS/Open Finned Top Max Data Rate 850Gbps (8x 106.25Gbps)
    Wavelength 1271nm,1291nm,1311nm,1331nm Distance 2km
    Connector Dual Duplex LC/UPC Cable Type SMF
    Transmitter Type EML Receiver Type PIN PD
    TX Power -3.2 to 4.4 dBm Receiver Sensitivity < -7.2 dBm
    Packaging Technology COB (Chip on Board) Packaging Receiver Overload 4.4 dBm
    Power Consumption ≤16.5W Modulation Format 8x 100G-PAM4 electrical to Dual 4x 100G-PAM4 optical Serial Multiplexed
    DDM/DOM Supported Temperature 0 to 70°C (32 to 158°F)
    Protocols OSFP MSA, IEEE 802.3ck, CMIS Rev 5.1 Warranty 5 Years
    Quality Testing Program
    Optical Transceivers Testing

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

    Quality Certifications

    Applications

    800G Switch to switch Direct Connectivity:800G Switch to switch Direct Connectivity

     

    800G Switch to 2x 400G Switch Links:

    800G Switch to 2x 400G Switch Links

     

    800G Switch to 2x 400G  Server Links:

    800G Switch to 2x 400G Server Links

    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

    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)

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    Resources

    • PDF Document
      QT-OSFP-800G-2FR4-IHS Open Finned Top Datasheet.pdf
    • PDF Document
      Transceiver Module User Guide.pdf
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    Cisco OSFP-2X400G-FR4 800G 2x 400GBASE-FR4 Twin-port OSFP IHS/Open Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Ethernet Optical Transceiver Module

    Compatible Cisco

    Transceivers type OSFP-2X400G-FR4 | 2km | Dual Duplex LC/UPC | IHS/Open Finned Top

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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!

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    Cisco OSFP-2X400G-FR4 800G 2x 400GBASE-FR4 Twin-port OSFP IHS/Open Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Ethernet Optical Transceiver Module
    US$ 1,255.50
    Compatible
    Cisco
    Transceivers type
    OSFP-2X400G-FR4 | 2km | Dual Duplex LC/UPC | IHS/Open Finned Top
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    Bulk Order Quotes
    Cisco OSFP-2X400G-FR4 800G 2x 400GBASE-FR4 Twin-port OSFP IHS/Open Finned Top PAM4 1270 to 1330nm 2km DDM Dual Duplex LC/UPC SMF Ethernet Optical Transceiver Module

    Compatible Cisco

    Transceivers type OSFP-2X400G-FR4 | 2km | Dual Duplex LC/UPC | IHS/Open Finned Top

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