400G QSFP-DD LR4 10km 1310nm SMF Duplex LC Optical Transceiver Module
QDD-400G-LR4-S Compatible 400GBase-LR4 QSFP-DD 1271/1291/1311/1331nm 10km DOM Duplex LC SMF Optical Transceiver Module
The QSFPDD-400G-LR4 is a 400Gb/s Quad Small Form Factor Pluggable-double density (also name as QSFP56-DD) optical module designed for 10km optical communication applications. The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals, and multiplexes them into a single channel for 400Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 400Gb/s optical input into 4 channels of CWDM optical signals and converts them to 8 channels of 50Gb/s (PAM4) electrical output data.
The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. The QSFPDD-400G-LR4 contains a duplex LC connector for the optical interface and a 76-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module. Host FEC is required to support up to 10km fiber transmission
The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP-DD Multi-Source Agreement (MSA) Type 2. It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.
Product Specifications
| P/N | QDD-400G-LR4 | Vendor Name | LightOptics |
| Form Factor | QSFP-DD | Max Data Rate | 425Gbps |
| Wavelength | 1271nm, 1291nm, 1311nm, 1331nm | Max Distance | 10km |
| Modulation Format | PAM4 | Host Required | FEC |
| Connector | Duplex LC | Voltage Supply | 3.3V |
| Cable Type | SMF | DDM Support | Yes |
| Transmitter Type | CWDM EML | Receiver Type | PIN |
| TX Power | -3.3~+3.5dBm | Receiver Sensitivity | < -7.7dBm |
| Operation Temperature | 0 to 70°C (32 to 158°F) | Maximum Power | < 10W |
| Protocols | QSFP-DD MSA, 100G Lambda MSA 400G-LR4 |
Application | 400G Ethernet, Data Center Interconnect, Infiniband Interconnects |
Worldwide FREE Shipping on orders over US$179
We offer FREE shipping on orders over US$179 WORLDWIDE by FedEx, DHL or UPS! We ship orders Monday through Friday from our warehouses. Most of the orders will be processed and shipped within 1~2 business days, excluding some custom items. The specific shipping time varies on the destination, shipping service you choose, and customs clearance. If you have a strict delivery time requirement, you may contact the sales representative before your purchase, and we will recommend you an appropriate shipping method. According to shipping methods, delivery time around the world is estimated as follows:
- FedEx Estimated 3-6 business days
- DHL Estimated 3-6 business days
- UPS Estimated 3-6 business days
Extended 30-day, no-questions-asked Return Policy
We have a 30-day, no-questions-asked return policy for all of our products. If you aren’t satisfied, please contact our team within 30 days of receipt for a refund or replacement. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original and unopened packaging. To initiate a return please contact our customer success team who will issue an RMA number and provide return shipping instructions.
How to Track your orders
Once your package leaves our warehouse, we'll send you a shipment notification email. This email includes the carrier name, tracking number, shipping date and items' details. You can click the tracking number to track your package on the carrier's website, like DHL, FedEx or UPS.