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The Arista QDD-400G-XDR4 Compatible LINK-PP 400GBASE-XDR4 Module supports link lengths of up to 2km parallel SMF with MTP/MPO-12 connector. It is compliant to IEEE 802.3bs protocol and 400GAUI-8 standards. The 400 Gigabit Ethernet signal is carried over four parallel lanes by one wavelength per lane. It can be used as 4x100G breakout to QSFP28-FR-100G.
| Arista Part Number | QDD-400G-XDR4 | Vendor Name | LINK-PP |
| Form Factor | QSFP-DD | Max Data Rate | 400Gbps |
| Wavelength | 1310nm | Max Cable Distance | 2km |
| Connector | MPO-12/APC | Media | SMF |
| Transmitter Type | EML | Receiver Type |
PIN |
| Modulation (Electrical) |
8x50G-PAM4 | Modulation (Optical) |
4x100G-PAM4 |
| DDM/DOM | Supported | Operating Temperature Range |
0°C to +70°C |
| Protocols |
QSFP-DD MSA, CMIS.5.0, IEEE 802.3bs | Warranty |
5 Years |
Take advantage of our testing program to evaluate the reliability and performance of our optical transceivers.
LINK-PP 400G Connectivity for Data Centers
The LINK-PP 400G QSFP-DD transceiver delivers ultra-high-speed, high-density, and energy-efficient (18W) performance for next-generation networks.It provides a reliable and scalable solution to achieve 400G data transmission with enhanced signal integrity and low latency.Ideal for large-scale cloud computing, AI, and high-performance data center environments requiring maximum bandwidth efficiency.

Tunable Power for DWDM Optimization
The LINK-PP DWDM transceivers feature adjustable transmit power, allowing precise tuning for optimal system margin and signal balance.This flexibility enhances network stability, performance, and link efficiency across dense wavelength environments.By maintaining power equilibrium, they eliminate the need for manual crosstalk correction, simplifying deployment and maintenance.Ideal for long-haul and metro DWDM systems requiring high reliability and scalability.





Data Rate (Max) | 400Gbps | 400Gbps | 400Gbps |
Wavelength | 1310nm | 850nm | 1310nm |
Connector | MPO-12/APC | MPO-12/APC | MPO-12/APC |
Cable Distance (Max) | 2km | 30m | 2km |
Cable Type | SMF | MMF | SMF |
Operating Temperature | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C |
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