With the rapid development of data centers, enterprises, vendors and users of higher, faster network demand is growing, ETU-LINK launched the 400G QSFP-DD DR4 optical module solution can better help users to solve a series of problems, the following follow the small easy to take a look at the product has what aspects of the characteristics and advantages of it!

I.What Is 400G QSFP‑DD DR4 Optical Module?

400G QSFP-DD DR4 Optical Module Product Analysis: 400G DR4 QSFP-DD optical module is designed to meet the needs of data center interconnections in the 400G Ethernet module, using the QSFP-DD packaging standards and PAM4 modulation technology to support up to 400Gbps data transmission rate.

The module uses 4 channels to transmit data, is IEEE802.3bs compliant, QSFP-DD CMIS Rev 4.0 compliant, and RoHS compliant, with a maximum power consumption of 12W, and it can achieve up to 500m transmission distance over Single Mode Fiber (SMF) via MPO-12 connector. Compared with other 400G optical modules, 400G QSFP-DD DR4 optical modules have lower power consumption and better heat dissipation.

II.ETU-LINK 400G QSFP-DD DR4 Optical Module Advantage Introduction

Compact package: The QSFP-DD package achieves a more compact design and smaller package size, which helps to increase the port density of the data center and reduce the size and footprint of the equipment.

Low Power Consumption: In order to meet the demand for green energy, ETU-LINK 400G QSFP-DD DR4 optical modules are designed with low power consumption features, with a maximum power of no more than 12W, which reduces heat generation and helps to lower the overall energy consumption in data centers.

High Reliability: By adopting advanced optical and electronic technologies, this optical module is highly stable and reliable, ensuring the stability and security of data transmission.

Ⅲ.Typical Application Scenarios For 400G QSFP‑DD DR4

In the big data environment, large-scale data transmission has become the norm. In the data center network architecture, the connection between servers, between switches, and between servers and switches requires the use of optical modules, fiber optic patch cords or other communication devices to achieve network data interconnections. 400G QSFP-DD DR4 optical modules provide a more efficient data communication solution through their high-speed transmission and compact packaging characteristics. The figure below shows the direct connection of 400G QSFP-DD optical modules in a data center application scenario.

ETU-LINK, as a professional platform for a full range of optical network products and services, can provide you with stable, reliable and cost-effective, cost-saving 400G DR4 QSFP-DD optical modules and total network transmission solutions, and our goal is to win your moving!

Why Choose ETU-Link Optical Transceiver?
As a professional manufacturer with more than 12 years of deep presence in the ‌optical communication industry‌, ETU-LINK specializes in full-series 10G/25G/100G/400G/800G optical modules and supporting optical communication devices. All our products have Compliant with FCC, CE and RoHS certifications, and are fully compatible with mainstream brand network equipment in the market.
We also support flexible OEM/ODM customization services to match diverse project requirements, with a leading 3-year warranty policy and fast order delivery.

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Last updated: Oct. 14 2026