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The SanDisk Extreme PRO UHS-I SDXC card is a 512GB V30 card aimed at photographers and videographers who need fast, reliable storage without moving to UHS-II. It is rated for UHS Speed Class 3 and V30, so it handles 4K video and sustained burst shooting on most DSLR and mirrorless bodies. Read and write speeds sit near the top of what the UHS-I interface allows, which keeps it competitive with other premium UHS-I cards but behind UHS-II cards in card-reader transfers. Owners praise its durability and consistent performance; the main complaints are the price premium and the fact that UHS-I caps speed on newer cameras.
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Lowest price we've seen: $339.98 on Nov 8 at Newegg. Tracked across 1 store since Nov 8.
Reviewers and owners rate the Extreme PRO UHS-I highly for reliability and real-world speed. Photographers report it clears camera buffers quickly and holds up in harsh conditions. The recurring criticism is that it costs more than standard cards without offering UHS-II speeds.
