SANDISK Extreme PRO microSDXC 64GB Class 10 UHS-I U3 V30 A2 4K UHD SDSQXCU-064G-GN6MA memory card

Experience blazing-fast speeds with a microSDXC memory card for fast transfers, app performance, and 4K UHD resolution. Ideal for your Android smartphone, action camera, or drone, this high-performance Extreme Pro microSD SDXC card lets you record 4K UHD video, Full HD video, and high-resolution photos. The ultra-fast SanDisk Extreme PRO microSDXC memory card achieves read speeds of up to 200MB/s and write speeds of up to 140MB/s. Plus, it's rated A2, so you get fast app performance for a great smartphone experience.

Improve the efficiency of your workflow
Featuring SanDisk QuickFlow technology, this card optimizes performance to save time when transferring media with fast read speeds of up to 200MB/s 8.

Great for recording 4K UHD videos
Ideal for capturing outdoor adventures, weekend getaways, or sporting events without skipping frames, the SanDisk Extreme PRO microSD UHS-I card lets you record uninterrupted 4K UHD and Full HD video with UHS Speed 3 (U3) and Video Speed 30 (V30) ratings. With up to 1TB, the SanDisk Extreme PRO microSD UHS-I card lets you record continuous 4K UHD and Full HD video with UHS Speed 3 (U3) and Video Speed 30 (V30) ratings.

Faster app loading with A2
Get faster app performance for an exceptional smartphone experience thanks to the A2 5 specification of the SanDisk Extreme PRO microSD card.

It is important to know

When choosing a microSD card for cameras, phones or camcorders, it is not only the capacity that is crucial, but also the balance between speed, class and device support. It is important to check whether your device actually supports the standards offered by the card and whether the selected capacity meets your real needs. Also pay special attention to what you will use the card for in practice.

• Check your device for support for the microSDXC standard and 64 GB capacity - some older or basic devices do not recognize higher capacities.
• Speed classes V30, U3, and A2 are recommended for recording 4K video, taking high-speed photos, and using apps on mobile devices, but their advantage only becomes apparent if the device supports these capabilities.
• We recommend using a "Standard" class card for occasional recording and everyday use in phones or tablets; for continuous or intensive recording in surveillance or car cameras, we recommend a dedicated "High Endurance" type.
• 64 GB is a practical choice for the average user who stores both images, videos and applications, but you can quickly run out of space with longer 4K recordings or massive RAW photography.

Source of editorial recommendations: ENAA guides and team experience.

In practice

🟢 Use on mobile phones and tablets

Thanks to its A2 and UHS-I classes, the card enables fast application performance and reliable storage of photos and videos - if the device supports the microSDXC format and 64 GB.

🟢 Recording 4K video in action cameras or drones

The high video speed class of V30 and U3 meets the requirements for stable 4K video recording; however, 64 GB may be a limitation for long recordings.

🟡 RAW photo storage and burst photography with the camera

It is suitable for recording RAW image files and burst photography due to its Class 10 speed, but more demanding photographers may soon fill up the 64 GB of space.

🔴 Continuous recording in surveillance or car cameras

The standard usage type is not designed for frequent overwriting and extremely long operation, so it is not the optimal choice for surveillance and car cameras - a "High Endurance" card is recommended.

Answers to frequently asked questions

Does this card work in every mobile phone or tablet with a microSD slot?

It only works in devices that support the microSDXC standard and capacities of 64 GB or more; older or basic devices may not recognize this card.

Is the card suitable for recording 4K video?

Yes, thanks to the V30 and U3 speed classes, it allows stable 4K video recording, but the duration is limited by 64 GB of space.

What does the A2 label mean and who benefits from it?

The A2 designation means optimized speed for running applications on Android devices; it is most beneficial for users who use the card as storage for applications.

Is the card recommended for use in a surveillance or car camera for continuous recording?

For continuous recording, it is recommended to use "High Endurance" cards, as standard models are not designed for frequent data overwriting.

Description updated: October 2026

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