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The SanDisk Extreme 512GB microSDXC is a high-capacity card built for action cameras, drones, phones and handheld consoles. It carries UHS Speed Class 3 and Video Speed Class 30 ratings, so it is specified for 4K UHD and Full HD recording, and its A2 rating targets faster app loading and in-app performance on Android devices. SanDisk rates it at up to 160MB/s read and up to 90MB/s write, both requiring compatible hardware. Against Samsung's Pro Plus and Evo Plus lines it trades blows on speed ratings, but it ships without an SD adapter, so buyers who need full-size SD slots must supply one.
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Owners of action cameras, drones and Switch consoles generally report the card handles 4K recording and large game installs without trouble. Complaints center on missing adapters and on cards that fall short of rated speeds, often traced to counterfeits or slow readers.
The SanDisk Extreme is a 512GB microSDXC memory card. It reads at up to 160MB/s, which cuts the time it takes to transfer high-resolution images and 4K UHD videos.
It writes at up to 90MB/s for fast shooting. It is rated UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) for 4K UHD and Full HD video. Its A2 rating is for faster app loading and in-app performance.
Reaching these speeds requires a compatible device. This item does not include an adapter.
