Taurus Ethernet Smart Cable Modules™

Flexible, high-performance Active Electrical Cables for AI and cloud connectivity

Download Portfolio Brief

Unleashing High Density AI Connectivity

  • Extend 200/400/800G Ethernet signal reach for high-density AI racks using Active Electrical Cables
  • Enhance signal integrity and bandwidth utilization for diverse AI topologies with thin and flexible cables
  • Scalable across diverse systems using standard connector form factors with gearbox and breakout options
  • COSMOS suite for performance optimization and seamless fleet management across dense AI platforms

Taurus Highlights

Optimizing Ethernet Connectivity for AI and Cloud

Extended Robust
Signal Reach

Over copper cables

Flexible Copper
Cables

Optimizing routing, service, and airflow

Enhanced Diagnostics
& Telemetry

Cosmos Platform Logo – Astera Labs Developer Ecosystem for CXL Products

Advanced capabilities through out-of-band management

Why Use Taurus Ethernet Smart Cable Modules?

Taurus enables robust, easy-to-design 100G/Lane Ethernet connectivity with high reliability and maximum uptime, featuring the COSMOS’ built-in suite for advanced fleet management, security, and deep diagnostics.

Robustness

  • Extended Cable Line Rate

    Future proof scalability for 200G/400G/800G

  • Low Power

    Uses 50% less power than Active Optical Cables

  • Low Latency

    Low latency operation at <50ns

  • Security

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

Easy System Design

  • Thin Cable Gauge

    Up to 34AWG

  • Fewer Twinax Pairs

    8 pairs at 200G/400G/800G reduces overall external diameter of cables

  • Extended Reach

    Up to 7m of reach

  • Flexible Supply Chain

    Taurus Smart Cable Modules are compatible with multiple cable vendors for easy second sourcing of active cable assembly

Fleet Management

  • Quick Debug

    Self-test features enable rapid troubleshooting

  • Deep Diagnostics

    Cable-side and host-side diagnostics enable easy management of entire fleets

Use Cases

Switch-to-Server

Enabling an “Active” plus “Smart” approach to higher-bandwidth Switch-to-Server Ethernet interconnects and Switch-to-NIC bandwidth utilization

Resources

Ordering Information

Orderable Part NumberDescriptionMax Data GenCable Line RateModePackage / ConnectorOrdering
EM400-QDX400G QSFP-DD Taurus Smart Cable Module400G50G/Lane, 100G/LanePAM4QSFP-DDContact Us, https://www.asteralabs.com/product-details/em400-qdx/
EM400-EPS400G OSFP Taurus Smart Cable Module400G50G/Lane, 100G/LanePAM4OSFPContact Us, https://www.asteralabs.com/product-details/em400-eps/
EM800-EPS800G OSFP Taurus Smart Cable Module800G100G/LanePAM4OSFPContact Us, https://www.asteralabs.com/product-details/em800-eps/
EM800-QDX800G QSFP-DD Taurus Smart Cable Module800G100G/LanePAM4QSFP-DDContact Us, https://www.asteralabs.com/product-details/em800-qdx/
EM200-QDX200G QSFP-DD Taurus Smart Cable Module200G25G/LaneNRZQSFP-DDContact Us, https://www.asteralabs.com/product-details/em200-qdx/

AI Your Way. Purpose-built Rack-scale Connectivity.

This week I will complete 850 days at Astera Labs. It is significant because the same day I will fly out to be part of the A-team representing our beloved company at Computex in Taiwan.The past few weeks and months have been characterized by a flurry of activity with a massive product launch, various public facing events, growth manifested in expansion along every direction, from physical… Read more

Securing Connectivity Starts at Power-On: Secure Boot for AI Interconnect Components

When you boot a modern platform, you’re bringing online more than just a CPU. You’re booting an entire ecosystem, especially in the case of rack-scale AI infrastructure: CPUs, GPUs/accelerators, NICs, storage, and an expanding set of connectivity components for both traffic and management paths. Many of these components include firmware and management interfaces, creating… Read more

Why Your Mixture-of-Experts Model Is Only as Good as Your Fabric

Introducing Hypercast™ for Improved Intelligence Benchmarks and Tokens-Per-Watt PerformanceThe more capable you make a frontier AI model, the harder it becomes to run. More parameters, more experts, more sophisticated routing: every architectural improvement that lifts benchmark scores also lifts the communication demands on the hardware connecting compute accelerators such as GPUs…. Read more

Astera Labs to Host Press Conference, Live Demos, and Technical Talks at Computex 2026

TAIPEI, Taiwan, May 26, 2026—Astera Labs, Inc. (Nasdaq: ALAB), a leader in semiconductor-based connectivity solutions for rack-scale AI infrastructure, will host press and industry analysts at Computex 2026 in the company’s room at the Taipei Nangang Exhibition Center, Hall 1 (TaiNEX 1), Room 303, third floor.WHAT: Astera Labs will use its Computex program to highlight the company’s… Read more

Astera Labs Extends Leadership in Open, AI Scale-Up Networking with New 320 Lane Scorpio X-Series Smart Fabric Switch

Now Shipping to Leading Hyperscalers, Scorpio Smart Fabric Switch Family Delivers Breakthrough Accelerator Utilization Through Memory-Semantic Based Open and Platform-Specific ProtocolsNews Highlights:Largest open, memory-semantic fabric switch: The Scorpio™ X-Series 320 Lane AI fabric switch, shipping today, supports increased scale-up cluster sizes with low latencyIntelligent… Read more

Astera Labs Reports First Quarter 2026 Financial Results

Record quarterly revenue of $308.4 million, up 14% QoQ and up 93% year-over-yearMarket-leading PCIe 6 AI fabric and signal conditioning portfolio delivered strong growth during Q1Now shipping newly announced Scorpio™ X-Series 320-lane AI Fabric switch and expanded Scorpio P-Series PCIe 6 switch family supporting 32 to 320 lanesSAN JOSE, CA, U.S. – May 5, 2026 – Astera Labs,… Read more

Astera Labs Announces Conference Call to Review First Quarter 2026 Financial Results

SAN JOSE, CA, U.S. – April 2, 2026 – Astera Labs, Inc. (Nasdaq: ALAB), a leader in semiconductor-based connectivity solutions for rack-scale AI infrastructure, today announced that it will release its financial results for the first quarter 2026 after the close of market on Tuesday, May 5, 2026. Astera Labs will host a corresponding conference call at 1:30 p.m. Pacific Time, 4:30… Read more

Scorpio 320 Lane Fabric Switch Demo

For today’s AI workloads, maximizing token performance means ensuring every GPU cycle is spent computing, not waiting on data.In this video, Steven Liao demonstrates how Astera Labs’ Scorpio 320 Lane fabric switch maximizes token performance by delivering single-hop, line-rate peer-to-peer connectivity to GPUs, which eliminates data movement bottlenecks that stall GPU utilization.TThe… Read more

Scorpio X-Series 320 Lane: Largest Open, Memory-Semantic Fabric Switch

Get your first look at the new Scorpio™ X-Series 320-Lane AI Fabric Switch! The frontier models driving today’s most demanding AI applications require connectivity infrastructure that keeps pace with the accelerators powering them.High-radix AI fabric switch replaces multiple legacy switches to enable larger scale-up cluster sizes in a single hop and reduce overall latencyHardware-accelerated… Read more

Scorpio P-Series 32 to 320 Lane: Broadest Family of PCIe 6 Fabric Switches

As GPU clusters scale for frontier AI, the fabric matters. Performance, scalability, and resilience all depend on how CPUs, GPUs, NICs, storage, and memory connect—and that connection is PCIe. This is exactly what Scorpio™ P-Series Fabric Switches are built for. Introducing the expanded Scorpio P-Series PCIe fabric switch family—now spanning 32 to 320 lane configurations—designed… Read more