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
EM800-EPS400G QSFP-DD Taurus Smart Cable Module400G50G/Lane, 100G/LanePAM4QSFP-DDContact Us
EM400-EPS400G OSFP Taurus Smart Cable Module400G50G/Lane, 100G/LanePAM4OSFPContact Us
EM800-EPS800G OSFP Taurus Smart Cable Module800G100G/LanePAM4OSFPContact Us
EM800-QDX800G QSFP-DD Taurus Smart Cable Module800G100G/LanePAM4QSFP-DDContact Us
EM200-QDX200G QSFP-DD Taurus Smart Cable Module200G25G/LaneNRZQSFP-DDContact Us

Nothing Out of Reach: The Aries PCIe 7 Family Delivers Copper and Optical Signal Conditioning for AI’s Next Chapter

The Industry’s First and Broadest PCIe® 7 Portfolio Powers AI Within and Beyond the RackAt a Glance:PCIe 7 unlocks the massive bandwidth AI needs while pushing signal integrity to its limitFor links beyond the rack, we introduce our first optical connectivity productsWithin the rack, Aries Smart Retimers and Redrivers help extend challenging copper linksOn October… Read more

Four Walls Constrain AI Today. We’re Breaking Them All.

Just 16 months ago, I wrote about AI outgrowing the server. While this thesis holds, the workloads have changed: The challenges then were defined by the size of training clusters, but AI now has entered the inference era in earnest.The hottest topic among data center operators is no longer the “AI model” but the “AI factory” – and the winning approach must deliver not just peak… Read more

AI Infra Summit 2026: When You Can’t Buy More Memory, You Get More Out of What You Have

Squeezing More Out of Every ByteGoogle Fellow Dave Patterson had the line of AI Infra Summit 2026: We’re entering a “memory-centric era.” The pricing backs him up. Analyst Jim Handy of Objective Analysis tells us that DRAM average price increased 250% from 2Q25 to 2Q26. Businesses are slowing down because they simply cannot get enough of it.But everyone walked into the summit… Read more

Astera Labs Announces Aries 7: Industry’s First PCIe 7 Signal Conditioning Portfolio Across Copper and Optical Interconnects 

Purpose-built retimers, redrivers, cable modules, optical drivers, and optical transimpedance amplifiers (TIAs) to support diverse PCIe 7 connectivity in AI systemsNews highlights:Most comprehensive PCIe signal conditioning portfolio: Building on Aries’ field-tested deployments, Aries Smart Signal Conditioning family is now the industry’s first PCIe 7 portfolio to span copper… Read more

Astera Labs Bolsters Leo Smart Memory Controller Family for Agentic AI and General-Purpose Cloud Workloads

As high-value AI applications drive explosive memory-footprint growth amid tight supply, new connectivity architectures enhance optimal memory utilization and reuseHighlightsNew Leo X-Series optimizes token economics: Paired with Astera Labs’ Scorpio X-Series Fabric Switches, Leo X-Series enables fabric-attached memory for long-context, KV-cache-intensive workloads. Platform-specific… Read more

Astera Labs Reports Second Quarter 2026 Financial Results

Record quarterly revenue of $392.4 million, up 27% QoQ and up 104% year-over-yearQ2 revenue strength reflects diversified growth across AI fabrics and signal conditioningQ3 revenue inflection to be driven by Scorpio™ X-Series 320-lane fabric switch production ramp SAN JOSE, CA, U.S. – August 4, 2026 – Astera Labs, Inc. (Nasdaq: ALAB), a leader in semiconductor-based connectivity… Read more

Astera Labs Expands Taurus Family with Industry’s First OCP-Standard Footprint Compatible 3.2T Smart Retimers and Smart Redrivers

Unified COSMOS stack helps customers accelerate time to market with real-time link observability and advanced diagnostic featuresNews Highlights:Expanded Taurus family adds 3.2T Ethernet Smart Retimers and Smart Redrivers for scale-up and scale-out AI infrastructure.Sampling industry-first Smart Retimers and Smart Redrivers built on the OCP Signal Conditioner Standard Footprint…. Read more

Demo: Aries PCIe 7 Smart Redriver

Watch Product Applications Engineer Raghu Parthasarathy demonstrate the industry’s first PCIe® 7 Smart Redriver, a new addition to the Aries family. As PCIe data rates double with each generation, system designers must maintain signal integrity across long board traces, connectors and lossy channels while also balancing power and latency trade offs.The Aries PCIe Smart Redriver is… Read more

First Look: Aries PCIe 7 Smart Signal Conditioning Family

As AI infrastructure scales, hyperscalers are moving quickly toward PCIe® 7 to unlock higher bandwidth. At the same time, they need robust links, faster time to market, and flexible connectivity solutions as architectures evolve.Watch Principal Product Manager Connie Lu provide the first look at Aries 7, the industry’s first and broadest PCIe 7 signal conditioning portfolio comprising… Read more

First Look: Expanded Leo Smart Memory Controller™ Family

See the new X-Series for fabric-attached KV cache offload and the Leo 2 E-Series and P-Series for CXL 3.2 expansion, pooling, and sharing. Read more