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CXL
Technology
Memory
Compute Express Link: pooled and expanded memory over PCIe wiring.
You're looking at a technology record: a building block of AI hardware — what it does, who makes it, and which chips and systems use it.
CXL lets servers attach and pool memory beyond their DIMM slots, promising capacity expansion for inference caches and databases. Adoption has been slower than hoped — HBM-on-package and big LPDDR pools took the urgent AI use cases — but the standard keeps advancing through CXL 3.x.
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Record reviewed as of 2026-01-15 — see Methodology.