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The SanDisk Extreme 512GB is a UHS-I microSDXC card rated U3 and V30, with read speeds up to 190MB/s and write speeds up to 130MB/s. It is A2-rated for app performance and built for 4K UHD video in action cameras, drones and Android phones. Against UHS-II cards it is slower on paper, but it costs far less and works in almost any device. Owners rate it as a dependable card for the capacity, though some report speeds below the headline figures in real use.
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Reviewers and owners describe the SanDisk Extreme as a reliable, fast card for cameras, drones and phones. Many praise its 4K recording and app performance, while some say measured speeds fall short of the advertised numbers.
The SanDisk Extreme is a 512GB microSDXC UHS-I memory card. It reads at up to 190MB/s with SanDisk QuickFlow Technology and writes at up to 130MB/s.
It handles 4K UHD video, Full HD video and high-resolution photos. Its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings support uninterrupted video recording. It suits Android smartphones, action cameras and drones. The A2 rating supports faster app performance on a smartphone.
The card is shockproof, temperature-proof, waterproof and X-ray-proof.
