Does Samsung PRO Plus 256GB SD work with Sony Alpha A9 III?

COMPATIBLEVerified from manufacturer spec sheet

Yes, the Samsung PRO Plus 256GB SD is compatible with the Sony Alpha A9 III.

Samsung Pro Plus is UHS-I V30. Meets U3 threshold for XAVC S HD (100Mbps). Cannot record XAVC HS 4K (280Mbps, requires V60 — UHS-I bus cannot achieve V60), XAVC S 4K (280Mbps, requires V60), XAVC S-I formats (require V90), or S&Q Motion (requires V90).

Conditions for compatibility

Compatible for stills and XAVC S HD (100Mbps, U3 met). Cannot record XAVC HS 4K (280Mbps, requires V60 — UHS-I bus cannot achieve V60), XAVC S 4K (280Mbps, requires V60), XAVC S-I 4K (600Mbps, requires V90), or S&Q Motion (requires V90). Full HD only for video.

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Confidence: inferred

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