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Cisco / Cisco 800GDD interface modules and cables

Cisco QDD-2X400G-FR4 · Pluggable transceiver

P/N: QDD-2X400G-FR4

Pluggable transceiver

Link transceiver; check both endpoints, connectors, media and reach. Max power consumption (W): 17 · Optical connector: Dual Duplex LC UPC · Wavelength (nm): 1270, 1290, 1310, 1330

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Cisco QDD-2X400G-FR4 · 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-2X400G-FR4
Manufacturer designation
QDD-2X400G-FR4
Manufacturer description
2x400G QSFP-D Transceiver, 2x400G-FR4, Dual Duplex LC, 2-km Duplex SMF
Source connector/form-factor designations
QSFP; Duplex LC
Max power consumption (W)
17
Optical connector
Dual Duplex LC UPC
Optical link conditions (one source row; align lists in order)
Nominal wavelength (nm)=1270, 1290, 1310, 1330; Cable type=SMF; Core size (microns)=G.652; Cable distance=2 km
Wavelength (nm)
1270, 1290, 1310, 1330
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.

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