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:

400G Fiber Optic

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Specification

Parameter Category	Specification
Model Number	QDD-400G-LR4-S
Product Type	400GBASE-LR4 QSFP-DD transceiver for 10 km single-mode links
Form Factor	QSFP-DD
Data Rate	400G Ethernet
Wavelength	1310 nm
Fiber / Media	Single-mode fiber (SMF)
Reach / Length	10 km
Connector	Duplex LC/PC
Bail Latch Color	Blue
Power Consumption	10 W
Operating Temperature	Commercial, 0 to 70 °C
Digital Optical Monitoring	Supported (DOM / DDM)
Compatibility	Cisco switches, routers and firewalls with 400G QSFP-DD ports
Condition	New Factory Sealed
Warranty	5 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

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

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.

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

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

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

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

We promise that our products are original and genuine only. Brand-new products will be brand new and sealed to ensure no malfunctions, and second-hand products will undergo strict testing before shipment.

We offer a 1-year warranty for brand-new products and a 90-day warranty for second-hand products. During the warranty period, if the equipment you purchase has any operational defects, we will replace it for you (the warranty does not cover faults caused by human damage and improper use).

Once the product malfunctions, please notify us as soon as possible, and we will appreciate your detailed description or photos.

The warranty period is calculated from the date of receipt of the goods. For any issues or inquiries regarding your purchase, please feel free to contact us via WhatsApp (+86 152 7186 6615) or Skype/Email: sales@infdevice.com

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