Scorpio Smart Fabric Switches

Fabric switches for the AI Era – Now shipping in pre-production

Download Portfolio Brief

Purpose-built portfolio for deploying cloud-scale AI platforms at unprecedented pace and scale

  • Improve energy efficiency with maximum performance per watt fabric solutions
  • Increase GPU utilization with predictable, secure and high-performance data flows
  • Maximize server uptime with COSMOS delivering unprecedented data center observability
  • Reduce time to market with flexible software-defined architecture and seamless interoperability

Why Use Scorpio Smart Fabric Switches?

Maximize Utilization

  • High Performance Data Ingest

    With PCIe 6 support and AI-optimized architecture, Scorpio P-Series delivers maximum predictable performance to increase GPU utilization

  • High Performance Scale-up

    With a software-defined architecture, Scorpio X-Series delivers protocol and performance optimization for increased data transfer efficiency

  • Performance Monitoring

    Real-time telemetry data provides valuable insights to optimize performance and improve utilization

Ease-of-Use

  • Purpose-built Board Design

    Small package size with integrated power supply decoupling to enable easier routing

  • Future-proof

    Mix current and next-generation devices on the same platform

  • Seamless Software Integration

    Common COSMOS APIs enable Scorpio to integrate seamlessly into existing infrastructure management solutions that use the widely-deployed Aries Retimers

Increase Uptime

  • Fleet Management

    COSMOS software with deep telemetry and diagnostics for link and device health monitoring enables unprecedented data center observability

  • 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

  • Rigorous Interop Testing

    System testing with diverse ecosystem of PCIe hosts and endpoints in our Cloud-Scale Interop Lab minimizes interoperation risk for improved reliability

P-Series and X-Series

Application-specific products built from the ground up for AI servers and AI clusters

Architected for mixed traffic AI head node connectivity (GPU-to-CPU/NIC/SSD)

  • Industry’s first PCIe 6 fabric switch
  • Predictable and high-performance GPU-to-CPU/NIC/SSD data flows
  • High bandwidth and low latency peer-to-peer for GPU data ingest
  • Interoperability with diverse ecosystem of PCIe hosts and endpoints

Architected to deliver highest back-end bandwidth for AI scale-up (GPU-to-GPU)

  • Software-defined architecture enables flexibility for diverse AI accelerators
  • Platform-specific customization for homogeneous GPU scale-up fabrics
  • Protocol and performance optimization for increased data transfer efficiency
  • Expanded reliability and telemetry features for maximum uptime

Use Cases

Resources

Ordering Information

SeriesPart #PCIeLanesPackage Size [mm]Status
P-SeriesPF60641L6.x6429×29Sampling
P-SeriesPF50641L5.x6429×29Sampling
P-SeriesX6064-1M04Xami MCIO-MCIO Evaluation KitSampling
X-SeriesCustomer SpecificContact Us

How Your Hyperscale Data Center Can Overcome the Challenges of Next-Gen AI Infrastructure with Scorpio Smart Fabric Switches

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Combating Noisy Neighbors with Scorpio P-Series Fabric Switches

AI server designs are being impacted by an issue that becomes increasingly worse as GPUs scale to meet demands of AI workloads. The issue: noisy neighbors! Scorpio P-Series Fabric Switches – the industry’s first PCIe 6 fabric switch – are architected for mixed traffic AI head-node traffic connectivity (GPU-to-CPU/NIC/SSD). Let’s take a closer look at the problem of noisy neighbors…

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Astera Labs Expands Interoperability Leadership to Propel Next-Gen PCIe 6.x Ecosystem

Comprehensive Cloud-Scale Interop Lab testing of Scorpio Smart Fabric Switches advances PCIe 6.x ecosystem enablement, fast-tracking customer platform designs, development, and time-to-marketSANTA CLARA, CA, U.S. – March 13, 2025 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced the expansion…

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Astera Labs Appoints Dr. Craig Barratt to Board of Directors

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Astera Labs to Participate in the Morgan Stanley Technology, Media & Telecom Conference

SANTA CLARA, CA, U.S. – February 25, 2025 – Astera Labs (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced that it will participate in the Morgan Stanley Technology, Media & Telecom Conference on March 4, 2025. Astera Labs’ presentation is scheduled for 4:05 pm PT. A webcast of the session will be made available…

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Astera Labs Announces Financial Results for the Fourth Quarter of Fiscal Year 2024

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How We Test – Scorpio

Scorpio Smart Fabric Switches undergo interoperability and stress testing with a wide range of PCIe 6.x exercisers, analyzers, GPUs, CPUs, NICs, SSDs, and Switches across multiple PCIe generations and topologies.This rigorous testing enables customers to design with confidence, minimize interoperation risk, and reduce overall development time and costs.

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See COSMOS in Action at DesignCon 2025

At DesignCon 2025, Astera Labs demonstrated live telemetry from Taurus Ethernet Smart Cable Modules being transmitted to a Grafana dashboard using our COSMOS platform APIs, providing real-time insights into network performance. The rack demo featured 100G per lane Ethernet traffic using Taurus enabled thin and flexible active electrical cables.COSMOS software provides unprecedented flexibility,…

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PCIe 6 Demo Featuring Aries 6 Smart Cable Modules

At DesignCon 2025, Astera Labs showcased its expanding portfolio of PCIe 6 solutions, including the new Aries 6 Smart Cable Modules (SCMs), Aries 6 Retimers and Scorpio P-Series Fabric Switches.Aries 6 SCMs extend PCIe 6 reach up to six meters to scale GPU clusters rack-to-rack with Active Electrical Cables. The demo also highlighted how combined telemetry from Aries 6 Retimers and Scorpio…

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