224G/448G High-Speed Copper Cable with Lotus Core: Complete Guide & Best Solution

As the demand for AI, big data, and high-performance computing surges, data centers are facing the challenge of 224G/448G ultra-high-speed interconnects.

However, traditional foam insulation structures reveal significant limitations in high-frequency applications, such as excessive insertion loss, poor impedance consistency, and large process fluctuations.

To address these issues, the industry has introduced the innovative Lotus Core Structure.

In this article, SPIDER EXTRUSION will explain the design principles of the Lotus Core Structure, highlight its four major advantages with performance comparisons, and explore its practical application scenarios—helping engineers and procurement professionals identify the most suitable high-speed copper cable solutions.

Background of 224G/448G High-Speed Copper Cable Demand

The rapid adoption of PCIe 7.0, GPU accelerators, and AI models has made data transmission rates exceeding 100 GHz inevitable.

Traditional DAC/AEC copper cables struggle to balance both performance and stability, making more efficient insulation structures the key breakthrough.

What is the 224G/448G High-Speed Copper Cable Lotus Core Structure?

The Lotus Core Structure is an FEP insulation technology that injects inert gases such as CO₂ or N₂ during the manufacturing process to form uniform “lotus root-like” micro air chambers. This structure can:

● Reduce the effective dielectric constant

● Minimize insertion loss

● Improve impedance control accuracy

● Maintain mechanical strength and process stability

The Four Key Advantages of the 224G/448G High-Speed Copper Cable Lotus Core Structure

1.Enhanced Transmission Performance

Compared with foam structures, the Lotus Core Structure reduces insertion loss by about 5% in 27AWG-224G testing, with higher impedance consistency, making it suitable for 224G/448G high-speed applications.

2.Process Consistency and Stability

Foam structures rely on random foaming, which is easily affected by process fluctuations; in contrast, the Lotus Core Structure forms controllable micro air chambers, ensuring product consistency and stability.

3.Optimized Equipment Investment

The Lotus Core Structure can be implemented on existing extrusion production lines with only minor modifications, avoiding large-scale equipment upgrades and reducing capital expenditure.

4.Cost-Effectiveness Analysis

Thanks to reduced material consumption and lower energy usage, the Lotus Core Structure offers a long-term cost advantage in overall cable manufacturing.

224G/448G High-Speed Copper Cable Lotus Core Structure vs. Foam Structure: Performance Comparison

Taking a 27AWG-224G cable as an example:

● The Lotus Core Structure demonstrates lower insertion loss at 53.13 GHz.

● Its impedance stability outperforms that of foam structures.

● Test curves show that the Lotus Core Structure can effectively suppress signal attenuation, making it highly suitable for high-frequency data center applications.

Practical Application Scenarios of 224G/448G High-Speed Copper Cables

224G/448G High-Speed Copper Cables with Lotus Core Structure Are Particularly Suitable For:

● AI training clusters

● High-speed data switches

● PCIe 7.0/8.0 high-speed interconnects

● High-density cabling in large-scale data centers

SPIDER EXTRUSION has already assisted multiple wire and cable customers in adopting the Lotus Core Structure, enhancing product performance while reducing manufacturing costs.

Frequently Asked Questions (FAQ)

1. What is the difference between the Lotus Core Structure and the foam structure?

The Lotus Core Structure adopts controllable micro air chambers, delivering more stable performance, while foam structures are affected by the randomness of foaming, resulting in lower quality consistency.

2. Is new equipment required?

No. Most existing extrusion production lines only need minor adjustments.

3. What wire gauges is it suitable for?

Currently, it performs best on 27AWG and 30AWG, with plans to expand to more specifications in the future.

With its breakthroughs in transmission performance, process stability, and cost advantages, the Lotus Core Structure is set to become the best choice for 224G/448G high-speed interconnects.

👉 Want to gain deeper insights into high-speed copper cable design and application solutions?
Contact SPIDER EXTRUSION today — delivering high-quality extrusion crossheads, extrusion tooling , and professional services exclusively for wire and cable customers!