The Definitive Guide toAI Data Centers
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Guide › Glossary › UALink

UALink

An open scale-up interconnect standard for up to 1,024 accelerators, the multi-vendor alternative to NVLink.

Current numbers

Common 2.0 / DL-PL 2.0 / Manageability 1.0 / Chiplet 1.01UALink component documents; implementation still qualifiesas of 2026 · register ↗
1,024UALink 200G 1.0 specification limit, ratification announced 2025-04-08as of 2025-04-08 · register ↗

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