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400G QSFP-DD LR4 Optical Transceiver CWDM 10km SMF LC Duplex PAM4
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Product Highlights:
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Premium 400G QSFP-DD LR4 transceiver providing long-reach 10km transmission over single-mode fiber using CWDM4 technology and LC duplex connectivity.
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Compliant with IEEE 802.3bs and 100G Lambda MSA, featuring low 10W power consumption and advanced DDM for mission-critical network monitoring.
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Optimized for metropolitan area networks and data center interconnects, offering a reliable path for high-bandwidth 400G scaling.
Table of Contents
Description
The FiberMania 400G QSFP-DD LR4 optical transceiver is a premium long-reach solution designed for high-capacity networking across distances up to 10km. This module utilizes four CWDM wavelengths to aggregate a total bandwidth of 400Gbps, employing advanced PAM4 modulation to maintain signal integrity over single-mode fiber infrastructure. Built for the most demanding environments, it provides the necessary reach for metropolitan area networks and large-scale campus backbones where short-reach optics are insufficient.
This module is fully compliant with the 100G Lambda MSA and IEEE 802.3bs standards, ensuring seamless integration into modern 400G hardware architectures. It features an 8×53.125Gb/s electrical interface and is housed in a QSFP-DD Type 2 design for superior thermal management. With its dual LC connector interface and integrated digital diagnostic monitoring, the LR4 transceiver offers a reliable and manageable high-speed link that balances high performance with power efficiency for enterprise and cloud service providers.
Specification
| Form Factor | QSFP-DD Type 2 |
|---|---|
| Data Rate | 425 Gbps |
| Wavelength | 1271, 1291, 1311, 1331 nm |
| Fiber Type | Single-mode Fiber (SMF) |
| Max Distance | 10 km |
| Optical Connector | Duplex LC |
| Electrical Interface | 400GAUI-8 |
| Modulation | PAM4 |
| Power Consumption | Max 10W |
| Supply Voltage | 3.3V |
| DDM Support | Yes |
| Operating Temperature | 0°C to 70°C |
| Compliance | IEEE 802.3bs, QSFP-DD MSA, RoHS |
Features
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Aggregate data rate of 425 Gbps using PAM4 modulation
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Support for 400GBASE-LR4-10 optical interface per 100G Lambda MSA
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Transmission distance up to 10km over G.652 single-mode fiber
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4-lane CWDM design (1271, 1291, 1311, and 1331nm)
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400GAUI-8 electrical interface compliant with IEEE 802.3bs
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Duplex LC connector for standard fiber patching
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Maximum power consumption of 10W
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QSFP-DD MSA HW Rev 5.1 Type 2 housing for better cooling
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Integrated Digital Diagnostic Monitoring (DDM) for real-time status tracking
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Commercial case operating temperature of 0°C to 70°C
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RoHS compliant and Class 1 Laser safety certified
Application
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400G Ethernet metropolitan area networks (MAN)
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Long-distance data center interconnects (DCI)
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5G wireless backhaul and midhaul transport systems
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Campus backbone links and enterprise core networking
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Cloud service provider infrastructure scaling
Q&A
Q: What makes the LR4 version different from the FR4 2km version? A: While both use CWDM technology and LC connectors, the LR4 is engineered with higher-performance lasers and more sensitive receivers to overcome signal attenuation over 10km, compared to the 2km limit of the FR4.
Q: Is this module compatible with older 100G LC cabling? A: Yes, as long as the cabling is single-mode fiber with LC connectors. However, the networking equipment on both ends must be 400G-capable and support the QSFP-DD form factor.
Q: Can FiberMania provide custom EEPROM coding for specific hardware? A: Yes, as an OEM and contract manufacturing specialist, we provide custom coding and firmware tuning to ensure full compatibility with major networking brands, preventing any “unrecognized module” errors.
Q: Does this transceiver support breakout configurations? A: Typically, LR4 is used for point-to-point 400G links. If you require breakout functionality to 100G, we recommend our DR4 or XDR4 modules which utilize MPO interfaces designed for that specific purpose.
Quality Qulifications and Compliance
To get the detailed certification, please go to the Compliance.
Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.
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