Does Samsung PRO Plus 256GB SD work with Sony A7 IV?

COMPATIBLEVerified from manufacturer spec sheet

Yes, the Samsung PRO Plus 256GB SD is compatible with the Sony A7 IV.

Samsung PRO Plus is UHS-I V30. Sony A7 IV spec table requires V30 minimum for XAVC HS 4K (Long GOP modes) and V90 minimum for XAVC S-I 4K (Intra-frame). Card meets V30 for HS modes but fails V90 for S-I intra-frame recording.

Limitation

Cannot record XAVC S-I 4K (Intra-frame) -- requires Video Speed Class V90, this card is V30. Works for XAVC HS 4K (Long GOP) and all lower-bitrate modes; card runs at UHS-I speed in the UHS-II slot.

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Confidence: inferred

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