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The SanDisk Extreme 512GB microSDXC is a UHS-I card rated U3 and V30 for 4K UHD video, with A2 app performance and read speeds up to 160MB/s and writes up to 90MB/s. It ships with a full-size SD adapter and is built to survive temperature extremes, water, shock and X-rays. It suits action cameras, drones, phones and handheld consoles that record 4K and run apps from the card. Rivals like the Samsung Pro Plus and Lexar Professional 1066x match its U3/V30 rating, but few combine A2 app performance, the rugged rating and an included adapter at this capacity. Owners generally report reliable sustained recording, though some note the 90MB/s write ceiling is well below UHS-II cards.
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Owners of the Extreme line generally report dependable performance in action cameras, drones and the Switch, with fast offloads through a good reader. Complaints center on write speed being lower than UHS-II cards and on peak speeds depending on the host device.
The SanDisk Extreme is a 512GB microSDXC UHS-I memory card that comes with an adapter. It reads at up to 160MB/s and writes at up to 90MB/s, which helps when transferring high-resolution images and 4K UHD videos. Reaching these speeds requires a compatible device that supports them.
It has UHS Speed Class 3 (U3) and video Speed Class 30 (V30) for 4K UHD and Full HD video. It is rated A2 for faster app loading and in-app performance. The card works with host devices that support microSDHC, microSDXC, microSDHC UHS-I and microSDXC UHS-I.
The card is built and tested to be temperature proof, waterproof, shockproof and X-ray proof. The SanDisk Memory Zone app, available on Google Play, can be used for file management.
