“Is this at least UHS-I Speed Grade 3? Best Buy's website only has dashes by those specs when I compare with SanDisk.”

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• Peter, Yes, the PRO Plus uses a UHS-I interface and is rated U3 for speed. ~Samsung Pro

  Answered by Samsung 2 years ago

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• Yes, Samsung 512GB ProPlus MicroSDXC is UHS-I Speed Grade U3. UHS-I Speed Grade U3 is certified to never write slower than 30 Mbps. Great for SLR Cameras requiring high sustainable read/write speeds and able to capture 4K video recording and fast continuous burst shooting.

  Answered by Liban 2 years ago

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