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SanDisk

SanDisk Extreme 256GB SDXC V30 UHS-I U3 Memory Card

SKU CH-8D1F-B50WH

256 GB SDXC card rated V30 U3 for 4K video at 70 MB/s write and 150 MB/s transfer

  • TypeSecure Digital (SD)
  • Capacity256GB
  • FeaturesSold as 1 Each.
  • Capture 4K UHD video without stutter with U3 V30 rating
  • Transfer photos fast at up to 150 MB/s read speed
  • Shoot continuous bursts at up to 70 MB/s write speed
  • Store thousands of RAW files on 256 GB capacity
  • Protect data in harsh conditions with temperature water shock X-ray proofing

256GB SDXC card for 4K capture

This SanDisk Extreme SDXC card offers 256GB capacity for cameras and camcorders that record Full HD, 3D and 4K UHD video. It supports UHS-I bus operation with U3 and V30 ratings, enabling sustained write performance for high-bitrate recording. The card is rated for temperatures, water, shock and X-ray exposure, making it suitable for demanding shooting environments.

Upgrade from slower Class 10 cards

Moving from a basic Class 10 card to this V30 U3 model removes the bottleneck that causes dropped frames or stutter in 4K workflows. The jump is worth it when your device writes sustained bitrates above the older card's minimum guarantee, especially during long clips or burst sequences. RescuePRO Deluxe software is included for accidental deletion recovery.

UHS-I bus caps peak throughput

The UHS-I interface limits maximum read speed to 150MB/s and write speed to 70MB/s regardless of card rating. Devices without UHS-I support will fall back to lower speeds, so the rated peaks are only reachable in compatible readers or cameras. Buyers needing sustained writes beyond 70MB/s must consider a different bus standard.

Highlights

  • Capture 4K UHD video without stutter with U3 V30 rating
  • Transfer photos fast at up to 150 MB/s read speed
  • Shoot continuous bursts at up to 70 MB/s write speed
  • Store thousands of RAW files on 256 GB capacity
  • Protect data in harsh conditions with temperature water shock X-ray proofing

Specifications

BrandSANDISK RETAIL STORAGE MEDIA
TypeSecure Digital (SD)
Capacity256GB
FeaturesSold as 1 Each.

Questions about this item

Does this 256GB SDXC card fit a standard SD card slot?

Yes, it uses the standard SD form factor and fits any SDXC-compatible slot.

What is the correct way to insert the card so the UHS-I bus works at 150MB/s read speed?

Align the notched corner with the slot, push gently until it clicks, and ensure the device supports UHS-I; forcing it backwards can damage the contacts.

When should I replace this V30 U3 card to avoid data loss?

Replace it if you notice corrupted files, slower write speeds below 70MB/s, or after heavy use in extreme temperatures, water, or shock conditions.

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