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Cisco / Cisco 400GDD interface modules and cables

Cisco QDD-400G-BD · Pluggable transceiver

P/N: QDD-400G-BD

Pluggable transceiver

Link transceiver; check both endpoints, connectors, media and reach. Max power consumption (W): 12 · Optical Connector: LC · Wavelength (nm): 850, 880, 910, 940

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Cisco QDD-400G-BD · Pluggable transceiver — Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing. Citadex Systems · Specification source
01 / Specifications
MPN / P/N
QDD-400G-BD
Manufacturer designation
QDD-400G-BD
Manufacturer description
400G QSFP-DD Transceiver, 400G BiDi, LC UPC Duplex MMF, 100m
Source protocol/rate designation (breakout rates are not summed)
400G
Source connector/form-factor designations
QSFP-DD; LC
Max power consumption (W)
12
Optical Connector
LC
Optical link conditions (one source row; align lists in order)
Nominal wavelength (nm)=850, 880, 910, 940; Cable type=MMF; Core size (microns)=50; Modal bandwidth=2000 (OM3) 4700 (OM4) 4700 (OM5); Cable distance=50m (OM3) 70m (OM4) 100m (OM5)
Wavelength (nm)
850, 880, 910, 940
Selection limits
Confirm exact host model/port, software release, FEC and supported breakout using Cisco TMG Compatibility Matrix. Fiber reach depends on the listed fiber grade, connector polish, optical budget and operating mode. Matching form factor alone does not guarantee support.

Specification source: Cisco ↗
Checked against documentation: 16.10.2026

Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.

Related variants

Cisco / QDD-400G-BD

What to include in your request

This item at a glance: Manufacturer description: 400G QSFP-DD Transceiver, 400G BiDi, LC UPC Duplex MMF, 100m · Source protocol/rate designation (breakout rates are not summed): 400G · Source connector/form-factor designations: QSFP-DD; LC.

Provide the exact part number, quantity and host equipment model. For replacements, include the installed part designation. Connectors, revision, power, dimensions and firmware are checked before order confirmation.

Component selection

Selection categories, not a list of guaranteed compatible parts. Compatibility is checked against the exact configuration.

Compare alternatives

Price, availability, lead time, configuration and warranty terms are confirmed in the quotation. A listing does not confirm stock.