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SanDisk Ultra 256 GB microSDXC card with SD adapter, red and grey finish

SanDisk

SanDisk Ultra 256 GB microSDXC 150 MB/s A1

SKU CH-5S3V-Z5BY9

Stores 256 GB of photos, apps and Full HD video with 150 MB/s read speed and A1 app performance

  • TypemicroSDXC
  • 150 MB/s read speed moves up to 1000 photos per minute
  • 256 GB capacity stores hours of Full HD video
  • A1 rating loads apps faster on Android devices
  • Class 10 and UHS-I U1 support smooth Full HD recording
  • Includes SD adapter for use in cameras and readers

Capacity and Compatibility

The SanDisk Ultra microSDXC card provides 256 GB of storage for Android smartphones and tablets. It includes an SD adapter for use in cameras and card readers. The A1 rating means the card is tuned for faster app launch and smoother in-app performance on mobile devices.

Speed Class and Transfer Rate

Rated Class 10 and UHS-I U1, the card sustains the minimum write speed required for Full HD video recording. Maximum read transfer reaches 150 MB/s, allowing up to 1000 photos to be moved in a minute under optimal conditions.

Upgrade Path and Limitations

This card replaces lower-capacity or slower Class 10 microSD cards when more space for Full HD footage and quicker app loading are needed. It is not suited for devices that require UHS-II or UHS-III speeds, nor for workflows that demand sustained write rates above the U1 threshold.

Highlights

  • 150 MB/s read speed moves up to 1000 photos per minute
  • 256 GB capacity stores hours of Full HD video
  • A1 rating loads apps faster on Android devices
  • Class 10 and UHS-I U1 support smooth Full HD recording
  • Includes SD adapter for use in cameras and readers

Specifications

BrandSanDisk
TypemicroSDXC

Questions about this item

How do I install the microSDXC card with the included SD adapter, and what step do people often get wrong?

Insert the microSDXC card into the supplied SD adapter with the label facing up, then slide the adapter into the device's SD slot until it clicks; the common mistake is forcing the microSD card directly into a full-size SD slot without the adapter.

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

The card itself requires no scheduled maintenance; replace it only if it fails, shows read errors, or you need more than the 256 GB capacity.

What limit appears first during sustained transfers at the rated 150 MB/s?

The 150 MB/s read speed is the ceiling; sustained writes are limited by the Class 10 / UHS-I U1 minimum of 10 MB/s, so long sequential writes will hit that lower threshold first.

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