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Brand Name : comelink
Model Number : 400G QSFP-DD LR4
Certification : ROHS/ISO9001/CE
Place of Origin : China
MOQ : 1 PC
Price : USD 750 PCE
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
Delivery Time : 3-5 workdays
Part Number : 400G QSFP-DD FR4
Form Factor : Twin-port OSFP
Max Data Rate : 400Gbps
Wavelength : 850nm
Max Distance : 2km
Connector : MPO-12/APC
Warranty : 3 Years
Package Dimensions : 5.12 x 3.54 x 1.57 inches
400G QSFP-DD FR4 is a 400Gb/s Quad Small Form Factor Pluggable Double Density (QSFP-DD) optical module supporting link lengths up to 2km SMF through duplex LC connectors. The Transceiver complies with IEEE 802.3bs, the 400GBASE-FR4 specification of the 100G Lambda MSA group, and the 400GAUI-8/CEI-56G-VSR-PAM4 standard. The 400 Gigabit Ethernet signal is carried over four CWDM mesh optical wavelengths. Multiplexing and demultiplexing of four wavelengths are managed within the device.
Feature:
1.400G-FR4 Transceiver Module 1270nm, 1290nm, 1310nm, 1330nm wavelengths Duplex LC, 2km over parallel single-mode fiber.
 2.The QSFP-DD port is backward compatible with QSFP+, QSFP28, and QSFP56 modules
 3.4 CWDM lanes MUX/DEMUX design, 8x50G PAM4 Retimed 400GAUI-8/CEI-56G-VSR-PAM4 standard.
 4.By testing in the target switch, it guarantees excellent performance, quality, and reliability.
 5.Comelink is a producer of transceivers, and customized services can be availed.

Specificiation
| P/N | QSFP-DD-400G-FR4 | Vendor Name | Comelink | 
| Form Factor | QSFP-DD | Max Data Rate | 425Gbps | 
| Wavelength | 1271nm, 1291nm, 1311nm, 1331nm | Max Distance | 2km | 
| Modulation Format | PAM4 | Host Required | FEC | 
| Connector | Duplex LC | Voltage Supply | 3.3V | 
| Cable Type | SMF | DDM Support | Yes | 
| Transmitter Type | CWDMEML | 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 | < 10.5W | 
| Protocols | QSFP-DD MSA, 100G Lambda MSA 400G-FR4 | Application | 400G Ethernet, Data Center Interconnect, Infiniband Interconnects | 
Application:


Unleash HPC Power with InfiniBand Architecture
We provides the Infiniband network solution, offering significant advantages in terms of high-speed, low latency, scalability, and efficiency.

Flat Top OSFP Connector Shell
The OSFP shell has a flat top and is used in adapters, such as ConnectX-7 InfiniBand Adapter Cards.
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