Aries PCIe®/CXL® Smart Cable Modules

Multi-rack GPU clustering for AI
over copper cables

Unleash GPU-to-GPU Clustering Across Racks

  • Extends PCIe® 6.0, 5.0, PCIe 4.0, and CXL® signal reach across dense AI racks using Active Electrical Cables
  • Built on the proven track record of our widely deployed and field-tested Aries PCIe/CXL Smart DSP Retimers
  • Supports multiple form factors and configurations to accommodate diverse AI system topologies
  • COSMOS suite for performance optimization and seamless fleet management across dense AI platforms

Aries SCM Highlights

Enabling reliable PCIe/CXL for rack-to-rack connectivity

Robust Signal
Integrity

Over copper cables with flexible link bifurcation

Extended Cable
Reach By

Compared to passive DAC solutions

Enhanced Diagnostics
& Telemetry

Advanced capabilities through in-band and out-of-band management

Why Use Aries Smart Cable Modules?

Aries SCMs enable robust, easy-to-design PCIe and CXL cabling while also offering COSMOS suite of built-in advanced fleet management, security, and deep diagnostic capabilities critical to ensuring high reliability and up-time.

Robustness

  • Supported Data Rates

    64 GT/s, 32 GT/s, 16 GT/s, 8 GT/s, 5 GT/s, and 2.5 GT/s Data Rates with Automatic Link Equalization

  • Power Efficient

    Low power CMOS process and L1.0 Low-Power Mode minimizes rack power/thermal density

  • Low Latency

    Less than 10ns

  • Security

    Advanced security features help prevent malicious attacks of unauthorized firmware loading, module diagnostics access, and configurations

Ease-of-use

  • Thin Cable Gauge

    Offering thin cables in various lengths for flexible bend radius

  • Extended Reach

    Up to 7m for long reach inter-rack PCIe 5.0 connectivity and up to 6m for PCIe 6.x connectivity

  • Flexible Supply Chain

    Aries SCMs are compatible with multiple cable vendors for ease of second sourcing of active cable assemblies and accelerated time to market

  • Interop Testing

    Rigorous system testing with 50+ Endpoints and all major Root Complex

Fleet Management

  • Quick Debug

    Built-in protocol analyzer with Link state history and timestamps, full non-destructive eye scan for RX Lane margining, self-test features to minimize link downtime and accelerate fault isolation

  • Deep Diagnostics

    Firmware-driven link health monitoring to alert BMC of any possible link performance issues

Use Cases

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Memory Disaggregation

Expand, pool and share memory between multiple servers to increase memory bandwidth and capacity while providing the option to reclaim stranded or under-utilized…

Resources

Ordering Information

Part NumberDocumentsPCIe Gen PCIe LanesOrderingProduction Status
PM30-6XXPortfolio BriefPCIe 6.xVariousContact Us Pre-Production
PM20-5XXPortfolio BriefPCIe 5.0VariousContact UsProduction

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