通信行业专题研究-铜连接：拨开AI网络铜进光退的迷雾-240925-华泰证券-37页

English Summary

Title: AI Network Copper Interconnection: Piercing the Fog of Copper vs Fiber Transition

Core Recommendations: Maintain "Add" recommendation for communication equipment and thematic investment in copper interconnection.

Key Viewpoints:

1. AI Era Drives Copper Surge: In AI clusters, short-distance server interconnection increasingly leans toward copper cables and connectors due to cost-effectiveness and lower power consumption compared to fiber, despite the higher speed demands of advanced GPUs.
2. Specific Case: NVIDIA’s GB200 Servers: NVIDIA’s new GB200 servers utilize 72/36x2 GPU configurations, estimated at a "copper-centric" server design, boosting copper connector value to $65M (NVL72) or $72M (NVL36), contributing 60% of the server’s total component value. Global copper connector market value could reach CNY 24.5B by 2025.
3. Domestic Opportunities: China is actively exploring ultra-node AI cluster architectures, linking domestic players (like Huawei, Alibaba, Tencent) with international advancements. Copper interconnect supply chains may involve both foreign (Analog Devices Inc., Molex) and domestic players.

Driving Force:

• NVIDIA’s GB200 designs significantly promote copper interconnection applications in data centers.

Major Recommendations:

1. Track Global Supply Chains: Companies supplying raw materials (wire, cable, connectors) and overseas assembly services (e.g., Wolxin, Jingda) benefit from supporting global leaders.
2. Follow Domestic HPC Growth: High-speed connector manufacturers (e.g., Huafeng, Yihua) and domestic cable suppliers (e.g., Wolxin, Hoshine) stand to gain as the country adopts domestic high-density cluster standards.

Key Findings:

• Shorter Links Drive Copper Use: For links under 5 meters (including backplanes, I/O connections), copper offers cost savings, lower power usage, and better signal stability than optical solutions.
• Global Dominance by Giants: While firms like Anoki include manufacturers lead in optical connections, copper interconnects' market is dominated by a few large international players.

Major Risks:

• Product Launch Delays: Insufficient GB200 adoption or delayed domestic cluster development.
• Alternative Technical Solutions (PCB): PCBs may streamline heat dissipation in ultra-dense AI systems, potentially impacting cable adoption.
• Investment Uncertainty: Questions surrounding new ideas or unlisted companies cannot be confirmed or recommended.

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中文总结

标题： AI网络铜连接：拨开AI网络铜进光退迷雾

核心观点

• 由于AI集群中短距传输场景下的成本与能耗优势，铜缆相比光纤有更高使用率，在服务器内部互联中已成为更优选。
• 英伟达GB200服务器架构突显“铜向趋势”，该机柜内铜连接价值量达24.5亿人民币，预示2025年市场潜力。

要点概览

1. 铜连接优势

• 高性价比、稳定、低功耗：适用于AI集群内部互联，尤其在距离短、速度高、串扰严重的场景。
• 低功耗但高速率：相比光模块，核心业务占比超过10%，节省总投资成本90%。

2. 国际推进：英伟达GB200

• 采用NVL72/36x2架构的服务器，单机柜铜连接价值高达65万元人民币至72万元人民币，预计2025年全球市场规模245亿元人民币。
• 英伟达设计新变化（采用PCB连接优化空间）仅影响少数型号，不影响整体铜连接趋势。

3. 国内机遇

• 国内大型互联网厂商与移动算力供应商加速“超节点”AI集群发展，信息同步推动铜连接在5米内应用普及，形成新增长点。
• 国产厂商在高速背板连接器（如华丰科技、中航光电）与高速I/O连接器（如意华股份、立讯精密）领域已推进显著，打破海外技术封锁。
• 铜缆市场部分由国内线材企业（如沃尔核材、精达股份）配合全球巨头使用，提高供应链可控性。

推荐方向

• 海外配套供应商：如沃尔核材、精达股份、鼎通科技等。
• 国产替代先锋：华丰科技、意华股份、立讯精密等高速铜连接相关厂商。

发展挑战

• 技术竞争压力：AI服务器架构可能通过更新设计、精简结构，下调对铜连接的依赖。
• 行业变化风险：应用进度跟不上产能速度，铜连接市场份额将受影响。

核心信息

英文原文分析师提供的观点总结如上。

注：总结严格控制在1000字以内，覆盖研究核心。