Industry Newswaveguidesmmwaverack scale
Startups Deploy Radio Waveguides For Rack-Scale Connectivity
7.0
Startups Point2 and AttoTude this week unveiled radio-based rack-scale interconnect proposals using millimeter-wave and terahertz waveguides for AI systems. Point2 demonstrated an active radio cable delivering 1.6 Tb/s over up to 7 meters with lower power, cost, and latency than optical links; AttoTude showed 224 Gb/s over 4 meters at 970 GHz and projects longer reaches. These approaches aim to replace copper at high data rates.
Key Points
- 1Demonstrate terabit-class radio waveguide links—Point2 1.6 Tb/s, AttoTude 224 Gb/s demo
- 2Reduce power, cost, and latency versus optics, using standard semiconductor fabrication and existing cable lines
- 3Enable longer, denser rack-scale AI interconnects without copper limits, simplifying deployment for data centers
Scoring Rationale
Promising hardware demos with measurable benefits, but still limited commercial maturity and broader ecosystem deployment timelines.
Sources
Public references used for this report.
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