Powering AI With Seamless Connectivity
Aries Smart DSP Retimers overcome signal integrity issues for PCI Express®(PCIe) 5.0, PCIe 4.0,
and Compute Express Link® (CXL), providing reliable high-speed AI platform connectivity.
Our COnnectivity System Management and Optimization Software (COSMOS) suite provides advanced
diagnostics capabilities (Link, Fleet and RAS) for cloud-scale deployments
Highlights
Redefining Connectivity for Cloud and AI Infrastructure
Extend PCIe/CXL Signal Reach
up to 3X
Enabling high-density cloud and AI infrastructure
Advanced Diagnostics With
COSMOS
Fleet, link management and RAS features for large-scale AI system deployments
Interoperable Across
50+endpoints
Stress tested with all major GPU, CPU & Memory vendors
Why Use Aries Smart DSP Retimers?
Robust, easy-to-use, and designed for enterprise fleet management
Robustness
Signal Integrity: Best-in-class SerDes exceeds PCIe specification, supports >36 dB (8 GHz) for both TX and RX, <1 dB (8GHz) package insertion loss, PCIe 5.0 drop-in upgrade
Thermals: Integrated heat spreader and thermally-optimized materials simplify thermal design
Interop Testing: Rigorous system testing with 50+ endpoints and all major Root Complex (Intel, AMD, NVIDIA, etc.)
Ease-of-Use
Total Solution Size: Integrated supply decoupling and AC coupling caps reduce solution size >50% and improve signal quality by avoiding vias
REFCLK: REFCLK repeat feature reduces need for additional CLK buffers
Flexibility: Firmware upgradable through I2C/EEPROM to add features, expose more diagnostics, adjust protocol for misbehaving Endpoints, and more
Fleet Management
Quick Debug: Built-in protocol analyzer with Link state history and timestamps, full non-destructive eye scan for RX Lane margining
Deep Diagnostics: Firmware-driven link health monitoring to alert BMC of any possible link performance issues
System Visibility: The Retimers unique position in the middle of the Link means diagnostic tools can help identify system-level issues before they affect customers
The Difference is Clear
Aries Smart DSP Retimers are a cost-efficient solution to doubling both bandwidth and reach for complex topologies while maintaining low latency.
PCIe 5.0 Smart DSP Retimer
Generic PCIe 4.0 Retimer
Use Cases
AI Accelerator Baseboard
Deliver high-performance, robust PCIe link connectivity with optimized thermal efficiency in Universal Baseboard (UBB) designs
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 in AI servers
Multi-rack GPU Clustering
Delivering high data throughput for larger AI clusters with multi-rack PCIe connectivity
Application Notes
Videos
Orderable Information
Aries PCIe/CXL Smart DSP Retimers
Orderable Part Number | Documents | Retimer Generation | Max PCIe Gen | PCIe Lanes | Ordering | Status |
---|---|---|---|---|---|---|
PT6082LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 6.x | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT6082LR/ | Sampling |
PT6082LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 6.x / CXL 3.x | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT6082LX/ | Sampling |
PT6162LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 6.x | x 16 | Contact Us, https://www.asteralabs.com/product-details/PT6162LR/ | Sampling |
PT6162LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 6.x / CXL 3.x | x 16 | Contact Us, https://www.asteralabs.com/product-details/PT6162LX/ | Sampling |
PT5082LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 5.0 | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT5082LR/ | Sampling |
PT5082LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 5.0 / CXL 2.0 | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT5082LX/ | Sampling |
PT5162LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 5.0 | x 16 | Contact Us, https://www.asteralabs.com/product-details/PT5162LR/ | Sampling |
PT5162LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 3rd | PCIe 5.0 / CXL 2.0 | x 16 | Contact Us, https://www.asteralabs.com/product-details/PT5162LX/ | Sampling |
PT5081LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 2nd | PCIe 5.0 | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT5081LR/ | Production |
PT5081LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 2nd | PCIe 5.0 / CXL 2.0 | x 8 | Contact Us, https://www.asteralabs.com/product-details/PT5081LX/ | Production |
PT5161LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 2nd | PCIe 5.0 | x 16 | Contact Us, https://www.asteralabs.com/product-details/pt5161lr/ | Production |
PT5161LX | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 2nd | PCIe 5.0 / CXL 2.0 | x 16 | Contact Us, https://www.asteralabs.com/product-details/pt5161lx/ | Production |
PT4080LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 1st | PCIe 4.0 | x 8 | Contact Us, https://www.asteralabs.com/product-details/pt4080lr/ | Production |
PT4161LR | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Smart_DSP_Retimer_Family-Product_Brief.pdf | 1st | PCIe 4.0 | x 16 | Contact Us, https://www.asteralabs.com/product-details/pt4161lr/ | Production |
Evaluation Kits
Evaluation Kit | Image | Documents | Description | Max PCIe Gen | PCIe Lanes | Pack Quantity | Ordering | Production Status |
---|---|---|---|---|---|---|---|---|
Equinox 6 PCIe 6.x Riser Card | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Equinox_6_Retimer_CEM_AIC-Product_Brief.pdf | Aries 6 Smart Retimer CEM-CEM Add-in-Card | PCIe 6.x | x 16 | 1 | Contact Us, https://www.asteralabs.com/products/smart-retimers/pcie-cxl-smart-retimers/order-systems/?system=EQUINOX-6 | Sampling | |
Solstice 6 PCIe 6.x Riser Card | https://www.asteralabs.com/wp-content/uploads/2024/03/2402_Astera_Labs-Aries_Solstice_6_Retimer_MCIO_AIC-Product_Brief.pdf | Aries 6 Smart Retimer CEM-MCIO Add-in-Card | PCIe 6.x | x 16 | 1 | Contact Us, https://www.asteralabs.com/products/smart-retimers/pcie-cxl-smart-retimers/order-systems/?system=SOLSTICE-6 | Sampling | |
Equinox 5 PCIe 5.0 Riser Card | https://www.asteralabs.com/wp-content/uploads/2020/11/Astera_Labs_Eclipse_Equinox_Product_Brief.pdf | Aries 5 Smart Retimer CEM-CEM Add-in-Card | PCIe 5.0 | x 16 | 1 | Digi-Key, https://www.digikey.com/en/products/detail/astera-labs-inc/EQUINOX-REVA/13982648?s=N4IgTCBcDaIKYEcCuBLAdgewB4gLoF8g; Contact Us, https://www.asteralabs.com/products/smart-retimers/pcie-cxl-smart-retimers/order-systems/?system=EQUINOX-REVA | Production | |
COMET-REVA | https://www.asteralabs.com/wp-content/uploads/2020/08/Astera_Labs_COMET_Product_Brief.pdf | Astera Labs USB-to-I2C Communication Module | 1 | Digi-Key, https://www.digikey.com/en/products/detail/astera-labs-inc/COMET-REVA/13881175?s=N4IgTCBcDaIMYHsC2BTALgAgIYGc0oCcsMAbLAIxxAF0BfIA; Mouser, https://www.mouser.com/ProductDetail/Astera-Labs/COMET-REVA?qs=%2Fha2pyFadujscaAy75Pb6mldQROydX7z1bYmIMd%252Bpx6QoUJRZnAUzA%3D%3D; Contact Us, https://www.asteralabs.com/order-products/?product=COMET-REVA | Production |
You may also order from our distributors >
FAQ
Have more questions about general topics, such as PCIe 5.0, ordering, quality, etc.? See the full list of FAQs.