This higher-speed SanDisk Extreme microSD variant trades the A2 app performance rating for faster sequential speeds of up to 245 MB/s read and 170 MB/s write, making it the better pick for sustained 4K/5.3K action cam footage where buffer clearing matters more than app load times.
SanDisk Extreme microSD (Action Cam Edition) Specifications
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Type: microSD
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UHS Bus: UHS-I
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Speed Class: V30
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Read Speed: Up to 245 MB/s
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Write Speed: Up to 170 MB/s
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Available Capacities: 64GB, 128GB, 256GB, 512GB
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Endurance: Standard
Who Is This Card For?
Pros & Cons
Pros
Highest sustained read/write speeds in the Extreme microSD line. Built for 4K/5.3K action cam footage.
Cons
No A2 app performance rating. Tuned for sustained video, not app storage.
Alternatives to Consider
Choose the standard SanDisk Extreme microSD instead if you also use the card for app storage on a phone or Switch, since it carries the A2 rating this edition lacks.
Where to Buy
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