AEC & LPO Silicon (Transitional)
Transitional solutions between Pluggable and CPO. AEC (Active Electrical Cable) is copper-based, supporting up to 800G/1.6T with 25-50% power savings vs. optics. LPO (Linear Pluggable Optics) reduces DSP burden for lower power. Credo leads the AEC market, sampling 1.6T AEC. 'Copper as long as possible, optics when necessary' is the industry consensus.
Investment Confidence
Theme Analysis
Key Drivers
- 800G AEC reaching 9m (Marvell/Infraeo OCP demo)
- Copper lifespan extension -- copper for scale-up, optics for scale-out
- 25-50% power savings vs. optics, 100-1000x reliability
- 1.6T AEC/DSP sampling begins (Credo, Astera)
Risk Factors
- Physical limits of copper at 224G/448G speeds
- LPO interoperability and test complexity
- Accelerated CPO adoption shortening transitional period
- Customer production commitment delays
Catalysts
- Credo 1.6T AEC mass production announcement
- OIF CEI-224G-Linear standard finalization
- Hyperscaler large-scale AEC adoption
- Astera Labs Taurus AEC shipment
Related Investment Ideas
3Credo Technology — The Definitive AEC Leader, Neural Network of AI Clusters
De facto standard in the Active Electrical Cable (AEC) market. HiWire AEC is the de facto standard for 400G/800G in-rack copper connectivity. 25-50% power savings and 100-1000x reliability improvement vs. optical. 1.6T AEC/DSP sampling underway. Hyperlume acquisition in 2025 provides optical hedging. 'Copper as long as copper works' is the industry consensus, positioning Credo as top beneficiary.
Astera Labs — PCIe Retimer Dominator, Expanding into AEC
Leading PCIe retimer market. Supplying critical signal integrity components for PCIe Gen5/Gen6 connectivity in AI servers. Challenging Credo's AEC market with Taurus AEC. Also targeting memory expansion with CXL (Compute Express Link) controllers. Growth proportional to GPU shipments as multiple retimers per AI server.
Alphawave Semi — Core Supplier of 224G SerDes IP
Specialist in high-speed SerDes IP and custom silicon. Providing critical IP for AI data center connectivity including 224G PAM4 SerDes, UCIe 64G, and UALink controllers. Covering AEC market with Cu-Wave PAM4 DSP, optical retimer market with O-Wave DSP, and coherent market with Co-Wave. Leading 224G SerDes IP on TSMC 2nm process. Alphawave IP is essential for big tech custom chip design.
Related Reports
6Coherent — the Pure-Play Optical Leader Whose Moat Is Built on Vertical Integration
AI interconnect bottleneck, InP vertical integration, 1.6T margins, CPO value decomposition — alpha exposure that captures volume, price and cost at once in a supply-constrained window
Credo Technology — The Purest Beneficiary of 'Copper Doesn't Die'
The de facto monopolist of active electrical cables (AEC) with ~73% share. We dissect a vertically integrated fabless player that uses its own SerDes to widen its market across the full reach spectrum, from in-chip memory to long-haul optics.
How AI Gets Connected — Reading the Connectivity Value Chain as Layers
Dissecting AI infrastructure's third bottleneck, 'connectivity,' from the basics (scale-up and scale-out) to the 8-layer value chain — where copper's time and light's time split
Marvell Technology — From Compute to Connectivity, the Optical DSP Ruler of AI Infrastructure
The rare combination of No. 1 merchant optical DSP plus No. 2 custom silicon. Dissecting the core beneficiary of the supercycle as AI infrastructure shifts from 'compute' to 'connectivity'
Optical Bottleneck: Why Lumentum and Coherent Are the Real Choke Points
1.6T, 200G EML and CPO — Entering the Era of Light
Optical Networking Deep Dive: The 1.6T Supercycle & CPO Revolution — Hidden Winners of AI Data Centers
The 800G→1.6T→3.2T Transition, CPO Nearing Production, NVIDIA's $2B Bet — A Complete Analysis of 10 Key Stocks