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SanDisk Ultra 256GB microSDXC Flash Card Model SDSQUA4-256G-AN6MA

In stock.
Ships from United States.
  • Read Speed Up to 100MB/s
  • 256GB
SanDisk logo
The SanDisk Ultra card on display

SanDisk Ultra microSD UHS-I Card

Shoot, Save And Share More Than Ever Before

The SanDisk Ultra MicroSDXC card offers massive capacity that lets you shoot, save and share more than ever. It's rated Class 10 in speed for flawless recording of Full HD video, and the A1 rating in application performance means your apps load faster on your phone or tablet. Up to 100MB/s1 transfer speed allows you to move all your content blazingly fast. A great choice for your phone, tablet, action camera and drone, this SanDisk Ultra MicroSDXC card empowers you to unleash the full potential of your devices.

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Compatible with your devices

SanDisk cards are compatible with Android smartphones and tablets.

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Capture and store even more hours of full HD Video

With a breakthrough capacity of up to 512GB, you can store even more hours of Full HD video2 on the card without worrying about running out of room for the videos, photos, music, movies and other files you want to shoot, save and share.

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Full HD video capture

Class 10 speed rating allows you to shoot Full HD3 video and high quality photos.

 An Android phone running a game, with texts reading as “A1 App performance” below it

Load apps faster with A1-rated performance

Rated A14, the SanDisk Ultra microSD card is optimized for apps, delivering faster app launch and performance that provides a better smartphone experience.

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Transfer speeds of up to 100MB/s1

Blazing transfer speeds mean that your content moves fast letting you move up to 1000 photos in a minute.5

 A finger tapping on the phone screen. At bottom left is a badge of SanDisk Memory Zone

SanDisk Memory Zone app for easy file management

Available from the Google Play store, the SanDisk Memory Zone app lets you view, access, and back up your phone's files in one location. It can also automatically move files from your device to your memory card to free up space.6

1. [for 64GB-512GB] Up to 100MB/s read speed; write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB=1,000,000 bytes.

2. Approximations; results and Full HD (1920x1080) video support may vary based on host device, file attributes and other factors.

3. Full HD (1920x1080) video support may vary based upon host device, file attributes, and other factors.

4. A1 performance is 1500 read IOPS, 500 write IOPS. Based on internal testing. Results may vary based on host device, app type and other factors.

5. Based on 4.1GB transfer of photos (avg. file 3.5MB) with USB 3.0 reader. Results may vary based on host device, file attributes and other factors.

6. Download and installation required; see

Warranty & Returns

Warranty, Returns, And Additional Information


  • Limited Warranty period (parts): 10 years
  • Limited Warranty period (labor): 10 years
  • Read full details

Return Policies

  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy