As AI, cloud computing, and big data drive bandwidth demand up by 30%+ annually, data center architects face a critical question: Should we prioritize 400G or 800G optical transceivers for upgrades?

As a leading manufacturer of 155M~800G optical transceivers, Sichuan Trixon Communication Technology Corp.,Ltd. has helped 50+ telecom and data center clients across 56 countries navigate this choice. Below is a practical breakdown of deployment priorities, tailored to your infrastructure goals.

In 2025, 400G remains the workhorse of global data centers—over 60% of large-scale facilities have deployed it at scale. Here’s why it’s a safe first step:

• Mature adoption: 400G’s supply chain is fully optimized (Trixon has mass-produced 400G modules since 2020, with consistent delivery for clients in North America, Europe, and Asia).
• Cost efficiency: 400G offers ~30% lower cost per Gbps than 800G (industry benchmark), and Trixon’s scaled production amplifies this advantage—all while maintaining ISO9001/UL/CE-certified quality.
• Broad compatibility: Trixon’s 400G transceivers work seamlessly with mainstream switches (Cisco, Huawei, Arista), eliminating the need for costly hardware overhauls.

800G is not a “replace-all" upgrade—it shines in niche, high-demand scenarios:

• AI training clusters: Models like GPT-4 or custom large language models (LLMs) require 800G’s ultra-high bandwidth (800Gbps per link) to cut inter-node latency. Trixon’s 800G modules (RoHS/FCC-compliant) are deployed in 3+ AI data centers across the U.S. (supported by our local branch).
• Supercomputing facilities: High-performance computing (HPC) for scientific research (e.g., climate modeling) relies on 800G’s throughput to handle petabyte-scale data transfers.

Note: For most general-purpose data centers (e.g., cloud storage, enterprise apps), 800G is currently over-provisioned.

Most data centers don’t need to choose “either/or"—Trixon recommends this phased approach:

1. Core layer: Deploy 800G

Use Trixon’s 800G transceivers for the data center’s backbone (connecting core switches), where AI/ HPC traffic converges.

2. Access layer: Retain 400G

Stick with Trixon’s 400G modules for edge switches (serving standard cloud/enterprise workloads) to control costs.

3. Unified compatibility

Trixon’s 400G and 800G lines both adhere to global standards (TUV, RoHS), ensuring stable interconnection between layers. Our technical teams (based in Chengdu, the U.S., and Hong Kong) can design custom hybrid architectures.

With 15+ years of experience, Trixon offers:

• A full portfolio (155M~800G) to support any deployment mix;
• ISO14001/45001-certified manufacturing and global compliance (UL/CE/FCC);
• Local support via branches in the U.S., Hong Kong, and major Chinese cities.