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Astera Labs
Aries PCIe®/CXL® Smart DSP Retimers
Field-tested and widely deployed at all major hyperscalers & AI platform providers
Product Description
Aries PCIe/CXL Smart DSP Retimers include three generations of protocol-aware, low-latency Retimers designed to integrate seamlessly between a root complex and endpoint(s), extending the reach by 3x. Compliant to all PCIe 6.x/5.0/4.0/3.0/2.0/1.0 rates and Retimer functional requirements, the Aries Smart Retimer enables more system topologies and lower total solution cost while minimizing implementation overhead and Bill of Materials (BOM). To support a wide variety of endpoints and port configurations, the Aries x16 Smart Retimer can bifurcate to one x16 / two x8 / four x4 / eight x2 links and other combinations; the Aries x8 Smart Retimer can bifurcate to one x8 / two x4 / four x2 links and more. Each link operates independently, and per-link diagnostics information such as link state history and electrical margin are accessible through the COSMOS suite.
The pinout is based on the Intel Retimer Supplemental Specification and the device uses a Flip-Chip CSP package. The pinout allows for separate single-layer routing for all high-speed transmit and receive signals. Compact design, minimal supporting circuitry, and integrated AC-coupling capacitors reduces overall solution size, making the Aries Smart Retimer ideal for space-restricted applications like system boards and riser cards.
Applications
- GPU/AI Accelerator data ingest and clustering
- General purpose server CPU connectivity for network, storage (SSD), accelerator, CXL memory, etc.
- PCIe riser and add-in cards for disaggregated compute, network, memory & storage connectivity
Data Sheet
*Astera Labs Authorized Distributor
