SanDisk Extreme SDXC UHS-I Card — 256GB — U3/V30 SDXC Card for 4K UHD Video
Free US shipping through Dec 31, 2026
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Free US shipping through Dec 31, 2026 · 90-day worry-free returns — free return label, no restocking fee · Refund released at your return’s first carrier scan · Arrives damaged or defective? We make it right — Returns, Made Simple
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For mirrorless shooters and streamers running SD-card cameras, the Extreme 256GB is the dependable middleweight: UHS-I with U3 and V30 ratings for clean 4K UHD recording, shot speeds up to 130MB/s for burst photography, and offloads up to 180MB/s with QuickFlow technology. It's temperature, water, shock, and x-ray proof, so the card survives the same bag abuse as the camera. A lifetime limited warranty backs the footage you can't reshoot.
This is the card behind searches like "SD card for 4K video," "V30 SDXC card," "SD card for Sony/Canon mirrorless," and "fast SD card for burst photography." The V30 video speed class guarantees a minimum sustained write for 4K UHD recording, and the up to 130MB/s shot speed is what keeps sequential burst mode from stalling on high-resolution stills. For streamers using an SD-slot mirrorless camera as a webcam or recording podcasts to camera, it is the correct tier — a U1 Ultra card is not rated for this job. Offload speed is the second half of the value: up to 180MB/s reads via SanDisk QuickFlow technology (fastest when paired with a reader that supports it) means a full 256GB card does not monopolize your evening. The card is temperature-proof, waterproof, shock-proof, and x-ray-proof, and carries a lifetime limited warranty.
Specs: 256GB | SDXC UHS-I U3/V30 | Read up to 180MB/s, Write up to 130MB/s | Part # SDSDXVV-256G-ANCIN
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