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The SanDisk Extreme 512GB is a UHS-I microSDXC card rated Class 10 and U3, aimed at action cameras, drones, phones and handheld consoles that record 4K video. It is built for speed and durability, with SanDisk's temperature, water, shock and X-ray resistance claims. Against rival UHS-I cards it sits in the fast tier, though it is not a UHS-II or V60/V90 card, so it is not the pick for high-bitrate professional cinema cameras. Owners generally report reliable sustained write speeds and few failures, while the common complaint is that real-world speeds fall short of the headline read figure and depend on the host device.
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Owners of SanDisk Extreme microSD cards generally report dependable performance in action cameras, drones and the Switch, with fast enough writes for 4K. Criticism centers on speeds that fall short of the advertised maximum and on cards that slow down when nearly full.
This SanDisk Extreme memory card has a storage capacity of 512 GB.
The card is listed as high speed, high capacity and waterproof.
