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    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    The Cisco SFP-10G-BXD-40KM compatible transceiver is a high-performance 10GBASE-BX10-D BiDi SFP+ module operating at 1330nm-Tx/1270nm-Rx over single-mode fiber (SMF), enabling 40km distances. It uses a Simplex LC connector, supports Digital Optical Monitoring (DOM), and is designed for 10G Ethernet/network applications. 
    Key Specifications & Compatibility 
    • Wavelength: 1330nm Tx / 1270nm Rx (10GBASE-BX-D).
    • Distance: Up to 40km over Single-Mode Fiber (SMF).
    • Connector: Simplex LC.
    • Form Factor: SFP+.
    • Monitoring: Digital Optical Monitoring (DOM/DDM).
    • Application: Data center, enterprise networking, 10GBASE-BX-D.
    • Compatibility: 100% Cisco compatible, MSA compliant, hot-swappable.
    • Temperature Range: Typically commercial (0 to 70°C). 
    Pairing Requirement
    For successful BiDi communication, the SFP-10G-BXD-40KM (Downstream) must be paired with a corresponding Upstream module, typically the SFP-10G-BXU-40KM (operating at 1270nm-Tx/1330nm-Rx). 
    Compatible Alternatives
    Many vendors offer reliable, third-party, MSA-compliant alternatives with lifetime warranties, such as ATGBICS, ProLabs, HPC Optics, and FS. These are functionally identical to the Cisco SFP-10G-BXD-40KM and can be used in Cisco switches. 
    Show more

    Web results

    HPC Optics Compatible with Cisco SFP-10G-BXD-40KM ...


    Amazon.com
    https://www.amazon.com › Cisco-Compatible-SFP-10G...
    Amazon.com
    https://www.amazon.com › Cisco-Compatible-SFP-10G...
    Fully Compatible with Cisco SFP-10G-BXD-40KM; Bi-Directional SFP+ Transceiver Module, 10Gbps Data Rate; 10GBASE-BX-D (BIDI) 10G Ethernet, Singlemode Fiber ...Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.amazon.com

    SFP-10G-BXD-40 Cisco® compatible SFP+ 10GBase


    ATGBICS
    https://atgbics.com › products › cisco-systems-sfp-sfp-1...
    ATGBICS
    https://atgbics.com › products › cisco-systems-sfp-sfp-1...
    SFP-10G-BXD-40 Cisco® Compatible Transceiver SFP+ 10GBase-BX-D (Tx1330nm/Rx1270nm, SMF, 40km, LC, DOM). £50.00.Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from atgbics.com
    £50.00 · 7-day returns
    Missing: 1330nm ‎| Show results with: 1330nm

    Cisco 10GBASE SFP+ Modules Data Sheet


    Cisco
    https://www.cisco.com › ... › Data Sheets
    Cisco
    https://www.cisco.com › ... › Data Sheets
    SFP-10G-BXD-I transmits a 1330-nm channel and receives a 1270-nm signal, whereas SFP-10G-BXU-I transmits at a 1270-nm wavelength and receives a 1330-nm signal.Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.cisco.com

    SFP-10G-BXD-40-C | Cisco® | Transceivers


    ProLabs
    https://www.prolabs.com › cisco-sfp-10g-bxd-40-c-10gb...
    ProLabs
    https://www.prolabs.com › cisco-sfp-10g-bxd-40-c-10gb...
    It is guaranteed to be 100% compatible with the equivalent Cisco® transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely ...Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.prolabs.com
    Missing: 1330nm ‎| Show results with: 1330nm

    Cisco SFP-10G-BXD-I Compatible 10GBASE-BX10-D BiDi ...


    FS.com
    https://www.fs.com › ... › 10G SFP+
    FS.com
    https://www.fs.com › ... › 10G SFP+
    This 10G BiDi SFP+ transceiver, featured with data transmission over a single strand of fiber，the one transceiver transmits a 1330-nm channel and receives a ...Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.fs.com
    $66.00 · In stock · 5.0(24) · $45 delivery · 30-day returns

    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible ...


    ETU-Link Technology CO ., LTD
    https://www.etulinktechnology.com › cisco-sfp-10g-bx...
    ETU-Link Technology CO ., LTD
    https://www.etulinktechnology.com › cisco-sfp-10g-bx...
    It transmits at 1270nm and receives at 1330nm (or vice versa) over a single single-mode fiber (SMF) strand, effectively doubling fiber utilization.Read more

    Cisco Compatible SFP-10G-BXD-40KM 10GBASE-BX-D ...


    HPC Optics
    https://www.hpcoptics.com › ... › BIDI
    HPC Optics
    https://www.hpcoptics.com › ... › BIDI
    100% Cisco Compatible; Bi-Directional SFP+ Transceiver Module; Supports 10.3 Gbps data rates; 10GBASE-BX-D 10G Ethernet; 1330nm/1270nm wavelength; Single-mode ...Read more

    Cisco 10GBASE SFP Modules Data Sheet


    Zenitel
    https://www.zenitel.com › sites › default › files
    Zenitel
    https://www.zenitel.com › sites › default › files
    PDF
    The SFP-10G-BX40U-I transmits at a 1270-nm wavelength and receives a 1330-nm signal. The SFP-10G-BX40D-I and SFP-10G-BX40U-I SFPs support digital optical ...Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.zenitel.com

    Cisco SFP-10G-BXD-I Compatible: 1330/1270nm BiDi ...


    L-P.com
    https://www.l-p.com › blog › compatibility-alternatives
    L-P.com
    https://www.l-p.com › blog › compatibility-alternatives
    Apr 2, 2026 — The SFP-10G-BXD-I operates at 1330nm for transmission (TX) and 1270nm for reception (RX). To establish a stable link, it must be paired with a ...Read more

    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible ...


    Fiberinthebox
    https://www.fiberinthebox.com › new-cisco-10gbase-127...
    Fiberinthebox
    https://www.fiberinthebox.com › new-cisco-10gbase-127...
    NEW Cisco 10GBASE 1270nmTX/1330nmRX BIDI SFP+ 40km Compatible Transceiver Module. Home · Optical Fiber Transceivers · Compatible SFP+. US$ 191.10.Read more
    Cisco SFP-10G-BXD-40KM 1270/1330nm Compatible from www.fiberinthebox.com
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    People also ask
    Will any SFP work with any switch?
    Yes, in most cases, but if you insert an SFP optical module on an SFP+ port, the transmission rate of the link will be reduced to 1Gb and some switches will lock the port at 1G until you reset the switch or run a configuration command.Jan 13, 2023

    Can a 10GbE Switch SFP+ Port be Connected to a Gigabit ... - NADDOD


    NADDOD
    https://www.naddod.com › blog
    NADDOD
    https://www.naddod.com › blog
    How do I know which SFP to use?
    How to Choose the Right SFP Module for Your Network?
    1. Consider Speeds. Speed is a major concern. ...
    2. Consider Wavelength. In fiber optics, wavelength is one of the most limiting factors. ...
    3. Single-Mode or Multimode Types. ...
    4. Link Distance. ...
    5. Operating Temperature. ...
    6. Check on Compatibility. ...
    7. Quality and Reliability.

    How to Choose the Right SFP Module for Your Network? - UnitekFiber


    UnitekFiber
    https://www.unitekfiber.com › how-to-choose-the-right-s...
    UnitekFiber
    https://www.unitekfiber.com › how-to-choose-the-right-s...
    Is SFP backward compatible?
    It's widely used in enterprise and data center networks for 10G Ethernet and Fiber Channel applications. SFP+ ports are backward compatible with SFP modules, making them a flexible upgrade path.Jun 16, 2025

    Transceivers Explained: SFP vs SFP+ vs SFP28 vs QSFP+ vs QSFP28


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    What is the difference between 10Gb SFP and SFP+?
    10G SFP supports a data transfer rate of 10Gbps, while 10G SFP+ supports a data transfer rate of up to 11.3Gbps.

    What is the difference between 10G SFP and 10G SFP+？ - Walsun


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    https://www.walsun.com › knowledge
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