Forum Discussion

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
Christina_Curlette's avatar
Christina_Curlette
Icon for Microsoft rankMicrosoft
May 14, 2026

CXL support is currently in preview in WS2025. GA of CXL support is TBD.

  • ohault's avatar
    ohault
    Brass Contributor
    Aug 09, 2026

    Would it be possible to have more information about Microsoft support of CXL in Windows, Windows Server and Azure Local ?

  • 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.