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400G QSFP-DD COHERENT

400G Coherent QSFP-DD ZR Fiber Optic Transceiver Module Tunable 80–120km LC SMF DDM | FLD-QDD-400G-ZR | Fiberland

400G QSFP-DD COHERENT ZR 120km

Rate400GCommon selectable lengths80km / 100km / 120kmWavelengthTunableInterfaceLC
Fiberland part number
FLD-QDD-400G-ZR
Unit price4,250.00USD / piece
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Key Specifications

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Form TypeQSFP-DD

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Model data

Technical Specifications

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14 specifications shown
Fiberland Part NumberFLD-QDD-400G-ZRVendor NameFIBERLAND
Data Rate400GWavelengthTunable
Common selectable lengths80km / 100km / 120kmForm TypeQSFP-DD
Optical InterfaceLCDDM SupportYES
Commercial Temp.0~70℃Industrial Temp.-
Compatible BrandsCisco,Huawei,Nvidia...200+ brandsComplianceCE,FCC,ROHS,REACH
Warranty3 YearsModeSM
Compatible model reference

Product Compatibility Mapping

Cross-reference the original manufacturer part number with the corresponding Fiberland part number before confirming the target device and firmware.

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Verified cross-references12 manufacturer part numbersAcross 5 brands
Showing 8 of 12 verified matches

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Original part numberBrandFiberland part numberProduct description
QDD-400G-ZR-SCISCOFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
DP04QSDD-E26-A1CISCOFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
QDD-400G-ZRARISTAFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
QDD-400G-ZR-EEARISTAFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
QDD-400G-ZRJUNIPERFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
740-114884JUNIPERFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
JCO400-QDD-ZRJUNIPERFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.
740-157132JUNIPERFLD-QDD-400G-ZR400G OIF 400ZR coherent QSFP-DD transceiver, tunable C-band, up to 120 km over amplified duplex single-mode fiber, LC, with digital diagnostics.

A part-number cross-reference is a model-selection starting point, not a blanket device guarantee. Final fit depends on the exact device, firmware or OS, target port and requested coding profile.

Link and application reference

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Application planning

Optical Transceiver Application and Link Map

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Optical transceiver application diagram covering data center, DCI, campus, server and metro networks
Testing and quality reference

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Testing and quality

Quality Control and Test Flow

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Quality control flow covering material, firmware, optical, temperature, compatibility and final QA checks
Product FAQ

Frequently Asked Questions

Answers to common compatibility, installation and troubleshooting questions.

Will DOM values appear correctly on third-party transceivers?

With a properly compatible module and supported host platform, DOM/DDM values should normally be accessible through the network equipment's management interface.

Can compatible transceivers be used for 100G, 400G, and 800G networks?

Yes. Compatible modules are available across many high-speed interfaces, although compatibility requirements become increasingly platform-specific at higher data rates.

How should I troubleshoot a transceiver that is recognized but has no optical link?

Check transmit and receive power, fiber polarity, connector cleanliness, wavelength, fiber type, link distance, FEC configuration, port speed, and the specifications of the transceiver at the opposite end.

Why does the switch detect the transceiver but report an incorrect module type?

This can occur when the EEPROM compatibility profile does not match the intended interface or when the host interprets the programmed identification differently. Verify the module coding and corresponding OEM reference.

Why does the transceiver work after reinserting it?

Reinserting a module forces the host to redetect and reinitialize the transceiver. If this repeatedly resolves the issue, inspect the port, module contacts, firmware behavior, and compatibility profile rather than assuming the optical link itself is faulty.

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