data-centre infrastructure desk

Covers Arm's first public Chiplet System Architecture (CSA) specification, the standards play beneath the silicon. Notes 60+ organisations have engaged with CSA to fix die-to-die physical-layer compatibility, positioning Arm as the convener of a chiplet ecosystem alongside UCIe.

“Arm released the first public specification of its Chiplet System Architecture; 60+ organisations have engaged on chiplet physical-layer compatibility.”

Tracks UALink as the open scale-up fabric backed by AMD, Intel, Astera Labs, AWS, Google, Meta and Microsoft, linking up to 1,024 accelerators per pod at 200Gbps per lane, with first silicon expected late 2026, positioned explicitly as the industry's collective answer to Nvidia's proprietary NVLink.

“UALink links up to 1,024 accelerators per pod at 200Gbps per lane; first hardware from AMD, Intel and Astera Labs arrives late 2026.”