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isheaffer's avatar
isheaffer
Copper Contributor
May 01, 2026

CXL Memory Expansion on WinServer 2025

I'm looking to find out if on window server 2025 is CXL Type 3 in memory expansion mode is validated "GA" and if so which cxl devices. I'm having issues finding this information.  Anyone know and abl...
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Windows Server 2025
isheaffer's avatar
isheaffer
Copper Contributor
May 15, 2026

Christina and team, is this for 'memory expansion' only or are you saying CXL 'full support' is TBD? or both?  i'm a bit unclear as i read it was already available for 'memory expansion' only via cxl.  i'm asking because details matter :) to me anyway.

thank you

Christina_Curlette's avatar
Christina_Curlette
Icon for Microsoft rankMicrosoft
Aug 10, 2026

Official CXL support timeline in Windows Server for any scenario is TBD. The preview support in WS2025 is for memory expansion.