Astera Labs

What Astera Labs does

Astera Labs is a fabless semiconductor company that designs and sells purpose-built connectivity silicon and management software for rack-scale AI and cloud infrastructure. Its Intelligent Connectivity Platform spans four hardware product families: Aries (PCIe/CXL Smart DSP Retimers, Smart Cable Modules, and Smart Gearbox), Leo (CXL Smart Memory Controllers for memory expansion, pooling, and sharing), Taurus (Ethernet Smart Cable Modules for 200G/400G/800G), and Scorpio (PCIe 6 Smart Fabric Switches, including the 320-lane X-Series). All products are built on a patented software-defined IC architecture with embedded microcontrollers and sensors, and are managed by the COSMOS software suite (Developer Kit, CLI/Explorer Tools) for fleet-level telemetry, RAS management, and predictive failure isolation. Validation is conducted in the company's Cloud-Scale Interop Lab with major hosts (Intel Xeon, AMD EPYC, NVIDIA), memory vendors (Micron, Samsung, SK hynix DDR5-5600 RDIMMs), NICs (NVIDIA ConnectX-8), and switches (NVIDIA Spectrum-X).

The company sells primarily via direct enterprise field-sales to hyperscalers (AWS, Microsoft, Meta) and AI platform providers, with channel relationships through Taiwan ODMs (GIGABYTE, Ingrasys, Inventec, Quanta Cloud Technology, Wiwynn). Pricing is quote-based and not publicly disclosed, with multi-year contracts. Customer concentration is high: AWS alone is disclosed to account for 40-50% of revenue and is counterparty to a $6.5 billion warrant tied to cumulative product purchases. Astera was founded in 2017, raised a $150M Series D led by Fidelity in November 2022 at a ~$3.2B valuation, completed its NASDAQ IPO in 2024 under ticker ALAB, and by mid-2026 had grown to over 1,000 employees across 13 global offices with TTM revenue of approximately $1.0B and a market capitalization of $63-71B, supported by a Q1 FY2026 GAAP gross margin of 76.3% and non-GAAP gross margin of 76.4%.

Name

Astera Labs

Legal name

ASTERA LABS, INC.

Website

https://asteralabs.com

Company type

Public

Founded year

2017

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Astera Labs is a fabless semiconductor company designing purpose-built connectivity silicon (retimers, CXL memory controllers, fabric switches, Ethernet cable modules) and COSMOS management software for hyperscale AI and cloud data centers, serving hyperscalers like AWS, Microsoft, and Meta.

Ownership category

akta.pro rank

Product category

Semiconductor Connectivity Silicon for AI Infrastructure

NAICS

Semiconductor and Related Device Manufacturing (334413)

akta.pro primary industry

Networking & Data Center Silicon (Switch/NIC/DPU/SerDes) (HDAHABAB)

akta.pro secondary industries

Network Hardware Components (ASICs/NICs/Transceivers) (HDABAFAN), AI Networking for Clusters (InfiniBand/Ethernet/RDMA) (HDAAAAAE), Storage/IO Controllers & Bridge ICs (USB/PCIe/SATA/NVMe) (HDAHAJAI)

Keywords

• Semiconductor connectivity solutions
• Data center interconnect silicon
• PCIe CXL retimers
• AI fabric switches
• CXL memory controllers

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations

Revenue model

1. Semiconductor IC Sales: Primary revenue from sales of semiconductor-based connectivity ICs including Aries retimers, Aries gearboxes, Leo CXL memory controllers, and Scorpio fabric switches. Sold directly to hyperscalers, OEMs, and ODMs. Quarterly volume tied to AI infrastructure capex cycles.
2. Smart Cable Module and Hardware Solutions Sales: Revenue from Aries PCIe/CXL Smart Cable Modules, Taurus Ethernet Smart Cable Modules, and Leo A-Series CXL Smart Memory Add-in Cards (e.g., A1000-1254AB). These represent integrated hardware solutions shipped to hyperscaler and OEM customers.
3. Software and Developer Tools (COSMOS): Revenue contribution from COSMOS Developer Kit, COSMOS Tools, and COSMOS Explorer software suite licensed alongside hardware for fleet management, link diagnostics, and lifecycle management of deployed connectivity infrastructure.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Core offering

Astera Labs designs and sells purpose-built semiconductor connectivity silicon and software for hyperscale AI and cloud data centers. Its Intelligent Connectivity Platform combines retimers, gearboxes, CXL memory controllers, PCIe fabric switches, and Ethernet smart cable modules with the COSMOS software suite to enable rack-scale AI infrastructure. The company sells directly to hyperscalers, AI platform providers, and server ODMs through enterprise contracts.

Product overview

Astera Labs delivers a single unified Intelligent Connectivity Platform purpose-built for rack-scale AI infrastructure, structured as a platform-plus-modules architecture. The platform combines (1) high-speed connectivity silicon ICs, modules, and boards across four core product families — Aries (PCIe/CXL Smart DSP Retimers, Smart Cable Modules, and Smart Gearbox), Leo (CXL Smart Memory Controllers), Taurus (Ethernet Smart Cable Modules), and Scorpio (PCIe 6 Smart Fabric Switches including X-Series 320-Lane and P-Series) — with (2) the COSMOS software suite (COnnectivity System Management and Optimization Software) that provides link, fleet, and RAS management. COSMOS is further broken into the COSMOS Developer Kit (libraries and scripts for device control and telemetry) and COSMOS Tools (CLI and Explorer for silicon design, bring-up, and validation). All products are validated through Astera Labs' Cloud-Scale Interop Lab against major hosts (Intel Xeon, AMD EPYC, NVIDIA), memory (DDR5 RDIMMs from Micron, Samsung, SK hynix), NICs (NVIDIA ConnectX-8), and switches (NVIDIA Spectrum-X), and supported by the company's ODM partnerships in Taiwan.

Differentiator

Problem solved

Functional benefit

Brands

• Scorpio: Smart Fabric Switch family (X-Series and P-Series) for AI scale-up networking, including PCIe 6 fabric switches.
• Aries
• Leo
• Taurus
• COSMOS

Products and services

• Intelligent Connectivity Platform Unified platform combining Astera's Aries, Leo, Taurus, and Scorpio silicon product families with the COSMOS software suite. Purpose-built for rack-scale AI and cloud infrastructure with a patented software-defined IC architecture and distributed microcontrollers enabling software-driven configurability across hardware products. Sold to hyperscalers, AI platform providers, and server ODMs.
• Aries PCIe/CXL Smart DSP Retimers PCIe and CXL retimer portfolio solving high-speed signal integrity challenges in AI and cloud servers with reliable 3x reach extension. Includes Aries 6 (third generation, PCIe 6.x/CXL 3.x, 64 GT/s PAM4 SerDes), Aries 5 (PCIe 5.0/CXL 2.0), and Aries 4 (PCIe 4.0) retimers for hyperscaler and OEM AI server platforms.
• Aries PCIe/CXL Smart Cable Modules Active Electrical Cable modules extending PCIe 6.0/5.0/4.0 and CXL signal reach across dense AI racks, enabling multi-rack GPU clustering. Supports data rates from 2.5 GT/s to 64 GT/s with up to 7m reach, sub-10ns latency, and thin flexible copper cables compatible with multiple cable vendors.
• Aries PCIe Smart Gearbox Industry's first purpose-built PCIe 6 Gearbox portfolio bridging PCIe 6 (Flit-Mode) and PCIe 5 (Non-Flit-Mode) ecosystems. Features 64 GT/s PAM4 SerDes with DSP for AI server channels, supporting seamless protocol translation between Flit-Mode and Non-Flit-Mode and long-reach SerDes.
• Leo CXL Smart Memory Controllers Purpose-built CXL memory controllers (E-Series for memory expansion, P-Series for memory pooling/sharing, A-Series hardware add-in cards) supporting up to 2TB DDR5-5600 RDIMMs. Enables memory expansion, sharing, and pooling for AI and cloud platforms with industry-first CXL 2.0 memory pooling.
• Scorpio Smart Fabric Switch AI fabric switches including the Scorpio X-Series 320-Lane (largest open, memory-semantic fabric switch with hardware-accelerated Hypercast and In-Network Compute engines) and Scorpio P-Series family spanning 32 to 320 lanes of PCIe 6. Provides single-hop scale-up for up to 80 accelerators per switch and 5.12 TB/s bidirectional bandwidth for AI cluster fabrics.
• Taurus Ethernet Smart Cable Modules Active Electrical Cable modules extending 200G/400G/800G Ethernet reach up to 7m in AI and cloud networks using 50G/100G per lane PAM4. Uses 50% less power than Active Optical Cables with sub-50ns latency and supports QSFP-DD and OSFP form factors.
• COSMOS (Connectivity System Management and Optimization Software) Software suite providing link, fleet, and Reliability/Availability/Serviceability management for large fleets of Astera connectivity infrastructure in AI data centers. Includes built-in security, predictive analytics based on telemetry, and lifecycle management capabilities licensed alongside hardware.
• COSMOS Developer Kit Developer Kit providing core libraries and scripts for device control, telemetry, and system integration across Astera's Aries, Scorpio, Leo, and Taurus product families. Supports rack-level management with comprehensive link telemetry, protocol analysis, and predictive analytics.
• COSMOS Tools COSMOS CLI and COSMOS Explorer tools for link management, monitoring, debugging, and accelerating silicon design, bring-up, and validation across Astera Labs' connectivity portfolio. Evaluation Kits available for Aries and Scorpio with Leo and Taurus coming soon.

Quantifiable outcome

• 73% more recommendations per second for AI inferencing recommendation systems
• +7 more outcomes

Named customers13 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability5 records

Feature10 records

Partnerships

18 partnerships are on record, tiered flagship, core and minor.

• NVIDIAflagshipStrategic or Co-development Partner · 3 June 2026Astera Labs is a lead partner in NVIDIA's NVLink Fusion ecosystem, providing scale-up connectivity solutions. Collaboration at Astera's Taiwan Cloud-Scale Interop Lab for joint AI platform validation. Astera's Scorpio X-Series positions as vendor-agnostic alternative to Nvidia's NVSwitch for scale-up AI systems.
• AMDflagshipStrategic or Co-development Partner · 3 June 2026AMD collaborates at Astera Labs' Taiwan Cloud-Scale Interop Lab for joint validation of connectivity solutions. Optimizing Deep Learning Recommendation Models with AMD EPYC 9005 Processors & Leo CXL Smart Memory Controllers.
• IntelflagshipStrategic or Co-development Partner · 3 June 2026Intel collaboration at Astera Labs' Taiwan Cloud-Scale Interop Lab. Leo CXL Smart Memory Controllers interop tested with 5th Gen Intel Xeon Scalable and Intel Xeon 6 processors. Leo combined with Intel Xeon Scalable Processors increases memory bandwidth and capacity by 50%.
• ArmcoreStrategic or Co-development Partner · 3 June 2026Arm collaborates at Astera Labs' Taiwan Cloud-Scale Interop Lab for AI platform integration and validation.
• GIGABYTEflagshipChannel Partner/ Reseller/ Distributor · 3 June 2026Taiwan ODM collaborating at Astera Labs' Cloud-Scale Interop Lab to accelerate AI rack deployment and integration of Astera products.
• Ingrasys (Foxconn subsidiary)flagshipChannel Partner/ Reseller/ Distributor · 3 June 2026Taiwan ODM collaboration partner at Astera Labs Cloud-Scale Interop Lab for AI server system integration.
• InventecflagshipChannel Partner/ Reseller/ Distributor · 3 June 2026Taiwan ODM collaboration partner at Astera Labs Cloud-Scale Interop Lab for AI server system integration.
• Quanta Cloud TechnologyflagshipChannel Partner/ Reseller/ Distributor · 3 June 2026Taiwan ODM collaboration partner at Astera Labs Cloud-Scale Interop Lab for AI server system integration.
• WiwynnflagshipChannel Partner/ Reseller/ Distributor · 3 June 2026Taiwan ODM collaboration partner at Astera Labs Cloud-Scale Interop Lab for AI server system integration.
• Edgecore (Accton) / NTT IOWNcoreTechnology or Integration · 28 May 2026Edgecore Open Fabric: Built for IOWN at Computex 2026 features Astera Labs as ecosystem partner in next-generation all-photonics AI infrastructure platform based on NTT's IOWN All-Photonics Network architecture. Delivers 102.4 Tbps intra-datacenter optical bandwidth with 160 ns latency.
• MicroncoreTechnology or Integration · 1 January 2024First public demo of end-to-end interoperability between Astera Labs' Scorpio P-Series Switch and Micron's PCIe 6 Data Center SSD at OCP Global Summit. Industry-first CXL interop with DDR5-5600 RDIMMs from Micron.
• SK hynixcoreTechnology or Integration · 1 January 2024SK hynix leveraged COSMOS Explorer advanced visual capabilities to swiftly pinpoint root cause of incompatibility occurrences, streamlining PCIe 6 eSSD bring-up. DDR5-5600 interop testing partner.
• SamsungcoreTechnology or Integration · 1 January 2024DDR5-5600 RDIMM interop testing partner for Leo CXL Smart Memory Controllers.
• NVIDIA (Spectrum-X and ConnectX-8)coreTechnology or Integration · 1 January 2024Taurus Ethernet-enabled AECs extend reach up to 7m with full interoperability with NVIDIA Spectrum-X for switch-to-switch and ConnectX-8 SuperNICs for switch-to-server interconnects.
• SMART Modular TechnologiesminorStrategic or Co-development Partner · 1 January 2024Collaboration to demonstrate how CXL can increase throughput and GPU utilization with Real-World CXL Platforms.
• Amazon (AWS) - $6.5B WarrantflagshipStrategic or Co-development Partner · 1 January 2024Astera Labs has a $6.5 billion warrant agreement with Amazon tied to cumulative product purchases, signaling hyperscaler view that connectivity silicon is the binding constraint on rack-scale AI deployment. AWS accounts for 40-50% of Astera Labs revenue.
• SupermicrominorOEM/ Whitelabel/ Licensing Partner · 1 January 2024Demonstrated unlocking peak PCIe performance in storage application with Aries Smart DSP Retimers and Supermicro's storage-optimized X13 BigTwin server at FMS 2023.
• OpenBMCcoreTechnology or IntegrationScorpio Smart Fabric Switches integrate with OpenBMC management for comprehensive failure isolation, non-disruptive firmware updates, and rack uptime maximization.

Scale indicators13 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Marvell Technology: Marvell is a direct peer in cloud and AI connectivity silicon, offering DSP retimers, PCIe/CXL solutions, and custom silicon platforms that compete with Astera's Aries, Leo, and Scorpio product families across hyperscaler AI infrastructure.
• Credo Technology: Credo is a direct peer in high-speed connectivity silicon for AI and cloud data centers, with active electrical cables, retimers, and DSP products that compete head-to-head with Astera's Taurus, Aries, and PCIe/CXL portfolios.
• Alphawave Semi: Alphawave Semi is a direct peer in high-speed connectivity silicon and IP for data centers, with UCIe, PCIe, and CXL offerings that overlap with Astera's Aries, Leo, and Scorpio product categories across hyperscaler customers.

Broad incumbents

• Broadcom: Broadcom is a broad incumbent offering custom AI silicon (XPUs and switches) and high-speed connectivity components that overlap with Astera's portfolio across hyperscaler customers. Its scale and ASIC engagements make it both a competitor and partner.
• NVIDIA: NVIDIA owns the proprietary NVSwitch and NVLink scale-up fabric that Astera's open Scorpio P/X-Series positions against. Astera is simultaneously an NVLink Fusion lead partner and a competing connectivity silicon vendor for hyperscale AI racks.
• Xilinx (AMD): Xilinx, now part of AMD, provides FPGA-based connectivity and accelerator solutions used in AI and cloud infrastructure. As an AMD product line, it competes with Astera in select high-speed serial connectivity and protocol bridge applications.
• Microchip Technology: Microchip offers a broad portfolio of connectivity, timing, and switching silicon that overlaps with Astera's retimer, gearbox, and PCIe/CXL product categories across server and storage applications.
• Renesas Electronics: Renesas is a broad incumbent semiconductor vendor with connectivity, memory interface, and CXL-adjacent products. It competes in select subsegments of Astera's PCIe/CXL and memory controller markets, particularly in Asia.
• Texas Instruments: Texas Instruments provides signal conditioning and connectivity ICs used broadly in data center and AI infrastructure. It is an indirect competitor in select retimer, signal integrity, and interconnect categories.

Others

• Edgecore Networks (Accton): Edgecore, a subsidiary of Accton, is an ecosystem partner through the NTT IOWN All-Photonics Network initiative. It is a system-level partner for deploying Astera-enabled next-generation AI fabric platforms rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/AsteraLabs
• YouTubeyoutube.com/channel/UChI4g3HIVurRXhB0L89QDYA
• LinkedInlinkedin.com/company/astera-labs

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors12 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Astera Labs