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Samsung, SK hynix, and Micron halt self-developed CXL controller projects and shift to outsourcing solutions

Samsung, SK hynix, and Micron halt self-developed CXL controller projects and shift to outsourcing solutions

Odaily星球日报Odaily星球日报2026/07/20 07:23
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According to Odaily, Citrini analyst jukan posted on X that the world’s three largest storage chip manufacturers have halted the in-house development of Compute Express Link (CXL) controllers and have switched to using chips designed by external fabless companies.

Samsung Electronics, SK hynix, and Micron have all scaled back or cancelled plans to commercialize CXL expansion device controllers. Micron was the first to stop in-house controller development and has adopted PrimeMass’s solution; SK hynix has also notified major partners that it is terminating its internal CXL controller development project, reallocating relevant personnel to processing-in-memory (PIM) projects. Samsung Electronics is using its in-house developed CXL controllers only for internal research within its R&D teams, while controllers for external products are reportedly sourced from fabless suppliers. Industry insiders note that Samsung has removed its self-developed controllers from official commercialization projects, retaining them solely for cutting-edge research purposes.

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