400GBASE-LR4 QSFP-DD Compatible Transceiver: 400G-QSFP-DD-11
400GBASE-LR4 QSFP-DD Transceiver Overview
Our 400GBASE-LR4 QSFP-DD transceiver delivers high-capacity long-reach connectivity for data center interconnects and metro networks. Supporting 10km over single-mode fiber with 4 CWDM lanes (1271-1331nm) using PAM4 modulation, this module provides 7.1 dB average link budget at 425 Gbps aggregate throughput. LC/UPC duplex connector with host FEC support.
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 10 km
- Guaranteed Link Budget: 7.1 dB
- Tx Wavelenght: CWDM 4 Ch
- Supported Data Rate: 425 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
400GBASE-LR4 QSFP-DD Pricing
SKU:400G-QSFP-DD-11
Made to Order - 2 Weeks400GBASE-LR4 QSFP-DD Compatible Transceiver Specification
Form Factor | QSFP-DD |
Modulation | PAM4 (Pulse Amplitude Modulation 4-level) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 10 km |
Guaranteed Link Budget | 7.1 dB |
TX Wavelenght | 4-channel CWDM (1271/1291/1311/1331 nm) |
RX Wavelenght | 4-channel CWDM (1271/1291/1311/1331 nm) |
Supported Data Rate | 425 Gbps |
Supportet Ethernet Applications | 400G Ethernet (425 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
CDR (Clock and Data Recovery) chip | Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 73 nm (1264.50–1337.50 nm) |
Average Launch Power (Min) Each Lane | -2.8 dBm |
Average Launch Power (Max) Each Lane | 4 dBm |
Extinction Ratio (Min) | 3.5 dB |
Receiver Type | PIN photodiode |
RX Wave Bandwidth | 73 nm (1264.50–1337.50 nm) |
Average Receiver Sensitivity (Min) Each Lane | -9.1 dBm |
Average Receiver Sensitivity (Max) Each Lane | 4 dBm |
Receiver Overload | 4.5 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 9 W |
Power | +3.3V single power supply |
Compliance | CE;RoHS;Class 1 FDA and IEC60825-1 Laser Safety Compliant;100G Lambda MSA;400GBASE-LR4;IEEE 802.3bs;CMIS V4.0;QSFP-DD MSA |
400GBASE-LR4 QSFP-DD Compatible Transceiver Datasheet
v4Complete technical specifications and product details
400GBASE-LR4 QSFP-DD Compatible Transceiver Description
The EDGEOPTIC 400G-QSFP-DD-11 is a 400GBASE-LR4 QSFP-DD optical transceiver compatible with multiple vendor platforms. It supports 400 Gigabit Ethernet over single-mode fiber using 4-channel CWDM at 1271, 1291, 1311, and 1331 nm wavelengths. Each lane carries 106.25 Gbps with PAM4 modulation, for an aggregate data rate of 425 Gbps over duplex fiber connections.
The transmitter section uses EML (Electro-absorption Modulated Laser) sources on each wavelength channel for 100G-per-lane CWDM transmission. The receiver section uses PIN photodiodes matched to the CWDM wavelength grid. The guaranteed optical link budget is 7.1 dB, with a rated transmission distance of 10 km over standard single-mode fiber. Note that distance is an indicative parameter -- actual reach depends on the minimal optical budget and average attenuation characteristics of the deployed fiber plant.
The module is a hot-pluggable QSFP-DD form factor with duplex LC/UPC connectors. Its electrical interface conforms to QSFP-DD MSA and CMIS V4.0 specifications, making it compatible with standard QSFP-DD host systems from multiple vendors. The transceiver can be encoded for current platforms from Cisco, Juniper, Arista, Nokia, Huawei, and other network equipment manufacturers. Host-side Forward Error Correction is supported, and CDR (Clock and Data Recovery) is included on all electrical lanes.
DDM/DOM (Digital Diagnostic Monitoring) provides real-time readings of transmitted and received optical power per wavelength channel, module temperature, bias current, and supply voltage. This data is accessible through the CMIS-compatible management interface for ongoing monitoring of transceiver health and performance. The operating temperature range is 0 to 70C commercial, with maximum power consumption of 9W. Appropriate thermal management should be considered in high-density deployments.
The module complies with IEEE 802.3bs for 400 Gigabit Ethernet and 100G Lambda MSA for the optical interface. Multi-vendor interoperability follows from adherence to QSFP-DD MSA standards, though equipment with vendor-specific module authentication may require custom EEPROM programming. The transceiver is CE/RoHS certified and compliant with Class 1 FDA and IEC60825-1 laser safety standards.
Common applications include data center interconnects, metropolitan area network links, enterprise campus backbones, and cloud infrastructure deployments over intermediate distances. The CWDM architecture offers spectral efficiency while remaining compatible with existing single-mode fiber plants. All units undergo quality verification before delivery, including optical parameter measurements across all wavelength channels, connector cleanliness inspection, and EEPROM memory validation.