COSMOS Tools

COSMOS CLI and COSMOS Explorer for link management, monitoring, and debugging

Request the Evaluation Kit

Accelerate silicon design, bring-up, and validation

  • Gain visibility across physical, data link, and protocol layers – from signal integrity and margining to LTSSM states and error metrics
  • Reduce manual debug cycles with real-time visibility into link training, speed changes, recoveries, protocol logs and more
  • Execute repeatable validation workflows, including stress testing, protocol checks, and telemetry capture
  • Modify link parameters, trigger tests, and capture rich diagnostics from a unified control plane

COSMOS Tools Features and Benefits

COSMOS Tools Use Cases

Design & Bring Up

Rapid bring-up and protocol checks

System Validation

Device configuration and link tuning

Automated Testing

Built-in tests and reporting automation

Production & Support

Event logging and root cause isolation

Testimonials

“With COSMOS CLI, we can quickly read the PCIe link status and capture the firmware logs directly from the device. This eliminates the need for additional tools to capture firmware logs and greatly improves work efficiency.”

“COSMOS CLI just worked. Sharing the same tools as the Astera Labs engineering team removed debug friction and significantly accelerated platform bring-up.”

“SK hynix leveraged the advanced visual capabilities of the COSMOS Explorer tool to swiftly comprehend and pinpoint the root cause of incompatibility occurrences, streamlining the PCIe 6 eSSD bring-up process.”

Resources

Evaluation Kits

Evaluation KitSupported System Validation BoardsRequestStatus
COSMOS Evaluation Kit – AriesAries System Validation BoardsContact UsAvailable
COSMOS Evaluation Kit – ScorpioScorpio System Validation BoardsContact UsAvailable
COSMOS Evaluation Kit – LeoLeo System Validation BoardsContact UsComing Soon
COSMOS Evaluation Kit – TaurusTaurus System Validation BoardsContact UsComing Soon

Computex 2026 Demo: How Linear Optics Enables Longer Link Reach, Lower Latency for Scorpio Smart Fabric Switches

Astera Labs demonstrated PCIe® Gen 6 connectivity of Scorpio Smart Fabric Switches enabled by a low-power, ultra low-latency LPO OSFP module at Computex 2026. Two years ago, Astera Labs exhibited the first successful demonstration of end-to-end retimed optical PCIe connectivity. This week, we’ve advanced the conversation again.Just a month removed from the announcement… Read more

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

Astera Labs Expands Taiwan Operations to Accelerate Global AI Infrastructure Buildout

Expanded Cloud-Scale Interop Lab and growing engineering presence to strengthen AI system integration with leading AI platform providers and Taiwan system manufacturersTAIPEI, Taiwan—June 3, 2026—Astera Labs, Inc. (Nasdaq: ALAB), a leader in semiconductor-based connectivity solutions for rack-scale AI infrastructure, today announced a significant expansion of its Taiwan operations… 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

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