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QDD-400G-LR4-S, Cisco 400G QSFP-DD Optical Transceiver, 1310 nm, 10 km, Duplex LC/PC

Model:
QDD-400G-LR4-S
Detail:
QDD-400G-LR4-S - 400GBASE-LR4 QSFP-DD transceiver for 10 km single-mode links. 1310 nm, 10 km over Single-mode fiber (SMF), Duplex LC/PC connector, 10 W maximum power consumption, Commercial, 0 to 70 °C. New factory sealed, 5-year warranty.
List Price:
US$ 4,350.00
Price:
US$3,697.50
Availability:
In Stock
Condition:
New Factory Sealed
Delivery:
1 Month Standard Lead Time
Need it sooner? Contact our sales team.
Tags:
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Specification

Specification

Parameter CategorySpecification
Model NumberQDD-400G-LR4-S
Product Type400GBASE-LR4 QSFP-DD transceiver for 10 km single-mode links
Form FactorQSFP-DD
Data Rate400G Ethernet
Wavelength1310 nm
Fiber / MediaSingle-mode fiber (SMF)
Reach / Length10 km
ConnectorDuplex LC/PC
Bail Latch ColorBlue
Power Consumption10 W
Operating TemperatureCommercial, 0 to 70 °C
Digital Optical MonitoringSupported (DOM / DDM)
CompatibilityCisco switches, routers and firewalls with 400G QSFP-DD ports
ConditionNew Factory Sealed
Warranty5 years

Comparison with Related Cisco Optics

Parameter QDD-400G-LR4-S QDD-400G-SR4.2-BD QDD-400G-DR4-S QDD-400G-FR4-S
Form Factor QSFP-DD QSFP-DD QSFP-DD QSFP-DD
Data Rate 400G 400G 400G 400G
Wavelength 1310 nm 850 nm 1310 nm 1310 nm
Reach / Length 10 km 70 m on OM3 / 100 m on OM4 500 m 2 km
Connector Duplex LC/PC MPO-12 (MTP) MPO-12 (MTP) Duplex LC/PC
Typical Use Campus / metro In-rack / intra-DC Long haul Long haul

Q&A

Q
What is the reach of the Cisco QDD-400G-LR4-S?
A

The Cisco QDD-400G-LR4-S supports 10 km over Single-mode fiber (SMF), using Duplex LC/PC connectors. Confirm the fiber grade and the optical budget of the link before ordering.

Q
What connector does the Cisco QDD-400G-LR4-S use?
A

The Cisco QDD-400G-LR4-S uses Duplex LC/PC. Standard duplex LC/PC patch cords are used for transmit and receive.

Q
How does the Cisco QDD-400G-LR4-S compare with the Cisco QDD-400G-SR4.2-BD?
A

The QDD-400G-LR4-S reaches 10 km over Single-mode fiber (SMF), while the QDD-400G-SR4.2-BD reaches 70 m on OM3 / 100 m on OM4 over Multimode fiber (MMF). Pick the shortest reach that covers the link distance — going longer than needed costs more and adds optical budget margin you will not use.

Support FAQ

Warranty terms

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