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SanDisk Extreme SDXC memory card in red and black finish

SanDisk

SanDisk Extreme SD UHS-I 256GB Bundle memory card

SKU CH-K6QR-81AZ5

256 GB SDXC card rated U3 and V30 with read speeds up to 180 MB/s and write speeds up to 160 MB/s for 4K UHD video and burst photography

  • Expansive 256GB capacity stores vast high-resolution photos and 4K UHD video
  • Read speeds up to 230MB/s enable rapid file transfers and efficient workflow
  • Write speeds up to 160MB/s support seamless 4K UHD recording without interruption
  • UHS-I U3 and V30 ratings guarantee smooth cinematic 4K Ultra HD capture
  • Built to withstand weather, water and shocks for reliable use anywhere

Capacity & audience

The SanDisk Extreme SD UHS-I card provides 256 GB of storage for photographers and videographers who capture high-resolution stills and 4K UHD footage. It suits professionals and enthusiasts needing reliable capacity for extended shoots.

Thermals, noise & power

As a solid-state memory card it has no moving parts, generates no audible noise and draws minimal power from the host device during normal read and write operations. The rugged construction is rated to withstand water, shock and temperature extremes.

Sustained-load behaviour

Sequential write speeds reach 130 MB/s and read speeds up to 180 MB/s with QuickFlow Technology, while U3 and V30 ratings guarantee the minimum sustained throughput required for uninterrupted 4K UHD video recording.

Highlights

  • Expansive 256GB capacity stores vast high-resolution photos and 4K UHD video
  • Read speeds up to 230MB/s enable rapid file transfers and efficient workflow
  • Write speeds up to 160MB/s support seamless 4K UHD recording without interruption
  • UHS-I U3 and V30 ratings guarantee smooth cinematic 4K Ultra HD capture
  • Built to withstand weather, water and shocks for reliable use anywhere

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 256GB SanDisk Extreme SD card in my camera, and what step do people often miss?

Insert the card label-side up until it clicks; the step many miss is formatting it in-camera before first use so the filesystem matches the device.

What maintenance or replacement will the 256GB Extreme card need over time?

No scheduled maintenance is required; replace the card if write speeds drop below the 130MB/s shot-speed rating or if the U3/V30 sustained-video threshold can no longer be met.

What limit appears first during sustained 4K recording on this 256GB card?

The V30 rating guarantees 30MB/s minimum sequential write; if the camera demands more than that sustained rate, the card will become the bottleneck.

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