Is there any requirement for the switch to use 400G LR4?

Although 400G LR4 is a long range module, its power consumption is less than 10w, which can be supported by most of the switches (some switch ports have power consumption limitations, usually 12w).

Can 400G LR4 be interconnected with 100G LR4?

No. Even though they are both LR4 and have the same transmission distance and number of channels, their technical standards are so different that they cannot be interconnected.

What is the difference between QSFPDD LR4 and QSFP112 LR4?

QSFPDD LR4 signals 8X50G on the electrical side, while QSFP112 has 4X100G on the electrical interface, but they have the same standard in the optical path and can be used together.

400GBASE-LR4 QSFP-DD PAM4 1310nm 10km SMF Module for Cisco

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Cisco QDD-400G-LR4-S Compatible 400GBASE-LR4 QSFP-DD PAM4 CWDM4 Duplex LC 10km SMF FEC Optical Transceiver Module

Name: Cisco QDD-400G-LR4-S Compatible 400GBASE-LR4 QSFP-DD PAM4 CWDM4 Duplex LC 10km SMF FEC Optical Transceiver Module
Brand: Naddod
SKU: 32775
Price: 779.00 USD
Availability: InStock
Rating: 5.0 (18 reviews)

#32775

Model: QDD-400G-LR4

Sold: 33

In Stock: 2

$ 779.00

Transceiver Types:

Brand:

Cisco

Arista

Juniper

Dell

Generic

NVIDIA/Mellanox (Ethernet)

Cisco

Arista

Juniper

Dell

Generic

NVIDIA/Mellanox (Ethernet)

Item Spotlights

Max Power Consumption ≤10W.
Provide Professional Compatibility and Parameter Test Reports.
Compliant with Hot Pluggable QSFP-DD MSA, IEEE 802.3bs Standard.
Class1/1M Standard Product, Compliant with RoHS Environmental Protection Standards (Lead-Free).
DDM(Digital Diagnostic Monitoring) Supported.
30-Day Free Return, 1-Year Free Replacement, 3-Year Warranty, Lifetime After-sales Technical Support.

Cisco QDD-400G-LR4-S Compatible 400GBASE-LR4 QSFP-DD PAM4 CWDM4 Duplex LC 10km SMF FEC Optical Transceiver Module

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Specifications

Applications

Product Highlights

Questions & Answers

Customer Reviews

Resources

Specifications

Applications

Product Highlights

Questions & Answers

Customer Reviews

Resources

Description

Cisco QDD-400G-LR4-S Compatible 400G QSFP-DD LR4 PAM4 CWDM4 lanes MUX/DEMUX design 10km LC SMF FEC DDM/DOM Optical Transceiver Module (1271nm 1291nm 1311nm 1331nm)

Cisco QDD-400G-LR4-S Compatible QSFP-DD SR8 400G Ethernet Optical Transceiver Module from QDD is the perfect solution for high-speed data center applications. It supports up to 400G of bandwidth over a single channel with up to 10km reach. This module features a Quad Small Form-Factor Pluggable – Double Density (QSFP-DD) form factor with 4 CWDM4 lanes and 4-level Pulse Amplitude Modulation (PAM4) encoding. The optical transceiver uses a wavelength range of 1271 to 1331nm and is compliant with the Multi-Source Agreement (MSA) standard. NADDOD's QSFP-DD LR4 is ideal for high-speed data transfers in data centers and Infiniband networks.

Specifications

Form Factor

QSFP-DD

Distance

10km

Wavelength

1310nm

Connector

Duplex LC

Power Consumption

≤10W

Transmitter

EML

Receiver

Media

SMF

Modulation（electrical ）

8x53.125Gb/s PAM4

Modulation（Optical ）

4x106.25Gb/s PAM4

Case Temperature(℃)

0 to 70°C (32 to 158°F)

Protocol

400G Ethernet Compliant

Connectivity Solutions

The Spine-Leaf Architecture

The 400G Data Center Interconnect (DCI) solution offers 400G port speeds and minimizes the cost of data center interconnections. NADDOD's optical connectivity products enable long-distance metropolitan area network extensions and fast migration of massive data between data centers. This solution eliminates bandwidth bottlenecks, significantly improves bandwidth, and enhances the utilization of data centers between each other.

Cisco N9K-C9364D-GX2A,Cisco N9K-C9364D-GX2A,Cisco N9K-C9364D-GX2A,Cisco N9K-C9332D-GX2B

Applications

Product Highlights

Unique advantages of NADDOD 400G transceiver

NADDOD 400G optical transceiver has great advantages in increasing data throughput and maximizing data center bandwidth and port density. 400G QSFP-DD has been tested and recognized by the global market as we are the first brand to complete the commercial order delivery of 400G data center optical modules.

Six professional transceiver performance tests

NADDOD has a full range of professional testing equipments for testing various parameters of products to ensure high performance and quality of optical transmission stability.

Compare Items

	QDD-400G-LR4	OSFP-400G-LR4	QDD-400G-LR8	QDD-400G-ER4	QDD-400G-ER8
Form Factor	QSFP-DD	OSFP	QSFP-DD	QSFP-DD	QSFP-DD
Center Wavelength	1310nm	1310nm	1310nm	1310nm	1310nm
Connector	Duplex LC	Duplex LC	Duplex LC	Duplex LC	Duplex LC
Cable Distance	10km	10km	10km	40km	40km
Electrical Modulation	8x53.125Gb/s PAM4(400GAUI-8)	8x53.125Gb/s PAM4(400GAUI-8)	8x53.125Gb/s PAM4(400GAUI-8)	8x53.125Gb/s PAM4(400GAUI-8)	8x53.125Gb/s PAM4(400GAUI-8)
Optical Modulation	4x106.25Gbps PAM4	4x106.25Gbps PAM4	8x53.125Gbps PAM4	4x106.25Gbps PAM4	8x53.125Gbps PAM4
Modulation Diagram
Power Consumption	≤10W	≤12W	≤14W	≤12W	14W
Transmitter Type	CWDM EML	CWDM EML	LWDM EML	LWDM EML	LWDM EML
Protocols	QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4,100G Lambda MSA, IEEE 802.3bs	OSFP MSA, CMIS 4.0, IEEE 802.3bs	QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, IEEE 802.3bs	QSFP-DD MSA, CMIS Rev4.1, OIF 56G PAM4, IEEE 802.3bs	QSFP-DD MSA, CMIS Rev4.0, OIF 56G PAM4, IEEE 802.3cn
Application	Data Center, HPC, enterprise core, 400G to 400G ethernet	Data Center, HPC, enterprise core, 400G to 400G ethernet	Data Center, HPC, enterprise core, 400G to 400G ethernet	Data Center, HPC, enterprise core, 400G to 400G ethernet	Data Center, HPC, enterprise core, 400G to 400G ethernet

Questions & Answers

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Can OSFP ports use modules in QSFP-DD form factor, such as QDD-400G-LR4?

OSFP and QSFP-DD are two completely different form factors, so QSFP-DD optical modules like QDD-400G-FR4, QDD-400G-SR8, QDD-400G-LR4 or QDD-400G-DR4 all these optical transceivers cannot be used in OSFP ports.

Can I use 400G LR4 for my fiber optic link of 8km?

Although the maximum transmission distance of 400G LR4 is 10km, the actual transmission distance needs to be judged according to the loss size of the fiber optic link, which is mainly related to the light emitting power of the module, the receiving sensitivity, and the link loss value.

What is the difference between 400G LR4 and 400G LR8?

The 400G-LR4 is 4X100G on the optical path side, and the 400G-LR8 is 8X50G on the optical path side, which leads to a difference in the number of lasers they use, and a difference in power consumption and cost.

Customer Reviews

5.0

5 Reviews

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All Reviews (5)

s***2
Verified Purchase
s***2
Verified Purchase
5.0
Initially, we were concerned that these modules might not be compatible with our Dell switch, but it turns out they have excellent connectivity, with all parameters well within normal ranges.
Helpful (9)Comments
g***i
Verified Purchase
g***i
Verified Purchase
5.0
The 400G optical modules have reduced the complexity and cost of our 400G upgrade solution.
Helpful (3)Comments
i***k
Verified Purchase
i***k
Verified Purchase
5.0
Initially, we were concerned that these modules might not be compatible with our Dell switch, but they have excellent connectivity, with all parameters well within normal ranges.
Helpful (10)Comments
a***a
Verified Purchase
a***a
Verified Purchase
5.0
The technical team was very professional and provided all the products we needed. The connections are now running smoothly.
Helpful (6)Comments
e***n
Verified Purchase
e***n
Verified Purchase
5.0
The technical team was very professional and provided all the products we needed. The connections are now running smoothly. The 400G optical modules have reduced the complexity and cost of our 400G upgrade solution.
Helpful (8)Comments

Resources

QDD-400G-LR4 Datasheet

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