Aries PCIe®/CXL® Smart DSP Retimers

Now sampling industry’s lowest power
PCIe 6.x and CXL 3.x Retimers

Download Portfolio Brief

Gold Standard PCIe® Retimer Portfolio

Field-tested and widely deployed at all major hyperscalers & AI platform providers

  • Solves high-speed PCIe®/CXL® signal integrity challenges in AI and general purpose servers with reliable 3x reach extension
  • Purpose-built for AI and cloud infrastructure delivering high performance, low power, and seamless interoperability
  • Provides a smart connectivity backbone that is reliable, scalable and customizable for diverse cloud-scale deployments
  • Comprehensive solution complete with software suite for advanced Link, Fleet & RAS telemetry & diagnostics

Aries 6 Highlights

Seamless upgrade from 2nd generation Aries 5 utilizing industry standard footprints

Lowest Power
PCIe 6.X Retimer

Optimizes cloud infrastructure TCO & simplifies system design

Robust Signal
Integrity

64GT/s PAM4 SerDes and DSP customized for demanding AI server channels

Enhanced Diagnostics
& Telemetry

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

Why AI & Cloud Providers Use the Aries Retimer Portfolio

Enhanced portfolio with years of learnings from cloud-scale deployments

Robustness

  • Enhanced Signal Integrity 

    Proven track record of solving high-speed PCIe/CXL signal integrity challenges with reliable 3x reach extension

  • Optimized Thermal Efficiency

    Low power Retimers with integrated heat spreader simplify platform thermal design and cooling while reducing infrastructure TCO

  • Rigorous Interop Testing

    System testing with major hosts and 50+ endpoints in our Cloud-Scale Interop Lab minimizes interoperation risk and accelerates time-to-market

Ease-of-use

  • Simple Board Design

    Small package footprint with integrated AC coupling caps and flexible clocking modes simplify routing and reduce solution size

  • Comprehensive Retimer Portfolio

    Multiple packages (8/16 lane), protocols (PCIe/CXL) and form factors (ICs/Smart Cable Modules/boards) for diverse AI & cloud

  • SW-defined Architecture 

    COSMOS with Aries software-defined architecture adjusts protocol and state transitions to support open and diverse PCIe ecosystem

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

  • In-field Upgrade

    COSMOS software upgrades enable seamless deployment of new features into existing infrastructure in the field

Use Cases

AI Server Head Node

Deliver high-performance, robust PCIe link connectivity with optimized thermal efficiency for CPU root complex server boards that connect to GPU baseboards…

Modular Infrastructure

Accelerate general purpose server deployments with high performance, robust PCIe connectivity solutions in modular infrastructure based on industry standard…

Resources

Evaluation Kits

Evaluation KitImageDocumentsDescriptionMax PCIe GenPCIe LanesPack QuantityOrderingProduction Status
Equinox 6 PCIe® 6.x Riser CardEquinox 6 PCIe® 6.x Riser Cardhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Equinox_6_Retimer_CEM_AIC-Product_Brief.pdfAries 6 Smart Retimer CEM-CEM Add-in-CardPCIe 6.xx 16

1

Contact Us, https://www.asteralabs.com/contact-us/Sampling
Solstice 6 PCIe 6.x Riser CardSolstice 6 PCIe 6.x Riser Cardhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Solstice_6_Retimer_MCIO_AIC-Product_Brief.pdfAries 6 Smart Retimer CEM-MCIO Add-in-CardPCIe 6.xx 16

1

Contact Us, https://www.asteralabs.com/contact-us/Sampling
Equinox 5 PCIe® 5.0 Riser CardEquinox 5 PCIe® 5.0 Riser Cardhttps://www.asteralabs.com/wp-content/uploads/2020/11/Astera_Labs_Eclipse_Equinox_Product_Brief.pdfAries 5 Smart Retimer CEM-CEM Add-in-CardPCIe 5.0x 16

1

Contact Us, https://www.asteralabs.com/contact-us/Production
COMET-REVACOMET-REVAhttps://www.asteralabs.com/wp-content/uploads/2020/08/Astera_Labs_COMET_Product_Brief.pdfAstera Labs USB-to-I2C Communication Module

1

Contact Us, https://www.asteralabs.com/contact-us/Production

Ordering Information

Orderable Part NumberDocumentsRetimer GenerationMax PCIe GenPCIe LanesOrderingStatus
PT6082LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 6.xx 8Contact Us, https://www.asteralabs.com/product-details/PT6082LR/Sampling
PT6082LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 6.x / CXL 3.xx 8Contact Us, https://www.asteralabs.com/product-details/PT6082LX/Sampling
PT6162LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 6.xx 16Contact Us, https://www.asteralabs.com/product-details/PT6162LR/Sampling
PT6162LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 6.x / CXL 3.xx 16Contact Us, https://www.asteralabs.com/product-details/PT6162LX/Sampling
PT5082LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 5.0x 8Contact Us, https://www.asteralabs.com/product-details/PT5082LR/Sampling
PT5082LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 5.0 / CXL 2.0x 8Contact Us, https://www.asteralabs.com/product-details/PT5082LX/Sampling
PT5162LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 5.0x 16Contact Us, https://www.asteralabs.com/product-details/PT5162LR/Sampling
PT5162LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf3rdPCIe 5.0 / CXL 2.0x 16Contact Us, https://www.asteralabs.com/product-details/PT5162LX/Sampling
PT5081LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf2ndPCIe 5.0x 8Contact Us, https://www.asteralabs.com/product-details/PT5081LR/Production
PT5081LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf2ndPCIe 5.0 / CXL 2.0x 8Contact Us, https://www.asteralabs.com/product-details/PT5081LX/Production
PT5161LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf2ndPCIe 5.0x 16Contact Us, https://www.asteralabs.com/product-details/pt5161lr/Production
PT5161LXhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf2ndPCIe 5.0 / CXL 2.0x 16Contact Us, https://www.asteralabs.com/product-details/pt5161lx/Production
PT4080LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf1stPCIe 4.0x 8Contact Us, https://www.asteralabs.com/product-details/pt4080lr/Production
PT4161LRhttps://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf1stPCIe 4.0x 16Contact Us, https://www.asteralabs.com/product-details/pt4161lr/Production

AI Demands Purpose-Built Solutions

Learn how Scorpio P-Series Fabric Switches maximize GPU utilization with unparalleled performance, reliability, and scaleAs AI infrastructure advances, the need for purpose-built connectivity becomes more pressing. General-purpose switches, initially designed for a wide range of applications, struggle to meet the demands of high-performance AI workloads, which require reliable, efficient,…

Read more

Building the Case for UALink™: A Dedicated Scale-Up Memory Semantic Fabric

Understanding the LandscapeAs AI models continue to rapidly evolve and drive a need for higher FLOPs and larger memory footprints, AI clusters will need to continue to grow to keep up. As the AI clusters rapidly scale in size from 25,000 GPUs per cluster[1] to 100,000 GPUs to 200,000 GPUs[2], not only is there a need to provide the connectivity between the GPUs in these clusters, but…

Read more

Driving AI and Cloud Innovation: How Astera Labs is Expanding its Market Opportunity

The year 2024 has been extremely exciting for Astera Labs with multiple big milestones including a successful IPO in March and the expansion of our Intelligent Connectivity Platform with the introduction of our Scorpio Smart Fabric Switch family. The company continues to scale aggressively with the goal of becoming the premier provider of purpose-built connectivity solutions into the AI and…

Read more

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

Record quarterly revenue of $113.1 million, up 47% QoQ and up 206% YoY Expanding market opportunities with new Scorpio Fabric Switches, driving higher dollar content in AI platformsSANTA CLARA, CA, U.S. – November 4, 2024 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for cloud and AI infrastructure, today announced preliminary…

Read more

Astera Labs Introduces New Portfolio of Fabric Switches Purpose-Built for AI Infrastructure at Cloud-Scale

Shipping in pre-production quantities, Scorpio Smart Fabric Switches deliver maximum system utilization and uptime for scale-out PCIe 6 connectivity and scale-up GPU clustering in AI serversSANTA CLARA, CA, U.S. – October 8, 2024 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced a new…

Read more

Astera Labs Announces Conference Call to Review Third Quarter 2024 Financial Results

SANTA CLARA, CA, U.S. – Oct. 2, 2024 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced that it will release its financial results for the third quarter 2024 after the close of market on Monday, Nov. 4, 2024. Astera Labs will host a corresponding conference call at 1:30 p.m. Pacific…

Read more

Astera Labs Opens New R&D Hub in Bengaluru to Drive AI and Cloud Innovation

Dr. Shivananda Koteshwar to lead the company’s India operations and spearhead development of innovative connectivity solutions for AI and cloud infrastructureSANTA CLARA, CA, U.S. – September 11, 2024 – Astera Labs, Inc. (Nasdaq: ALAB), a global leader in semiconductor-based connectivity solutions for AI and cloud infrastructure, today announced the official opening of its…

Read more

PCIe Cabling Demo at OCP 2024

At OCP Global Summit 2024, Astera Labs demonstrated its full portfolio of PCIe cabling solutions. The live demos included Aries PCIe/CXL Smart Cable Modules with Active Electrical Cables and Active Optical Cables to deliver extended reach for rack-to-rack and row-to-row configurations.

Read more

CXL Demo for DLRM at OCP Summit 2024

At OCP Global Summit, Astera Labs demonstrated the performance benefits of CXL memory for Deep Learning Recommendation Models (DLRM). The demo featured a 5th Gen AMD EPYC processor, DDR5 memory from Samsung, and four Leo CXL Smart Memory Controllers. The demo showed that by doubling memory capacity and bandwidth in the system, there is about a 70% increase in performance for DLRM.

Read more

End-to-End PCIe 6 Live Demo at OCP Summit 2024

At OCP Global Summit 2024, Astera Labs showcased the industry’s first end-to-end PCIe 6 demo, featuring the Scorpio Smart Fabric Switch. The Scorpio P-Series Fabric Switch was linked live at PCIe 6 64Gtps speeds with Gen 6 Exerciser from Keysight. In addition, see how COSMOS software suite delivers deep diagnostics and telemetry. 

Read more