SanDisk Extreme microSD UHS-I Card

Extreme speeds for fast transfer, app performance, and 4K UHD video2

Shoot, save, and share more 4K UHD than ever before2

Get extreme speeds for fast transfer, app performance, and 4K UHD.2 Ideal for your Android™ smartphone, and action cameras or drones, this high-performance microSD™ card does 4K UHD video recording, Full HD video, and high-resolution photos. The super-fast 400GB1 SanDisk Extreme® microSDXC™ memory card reads up to 160MB/s* and writes up to 90MB/s*. Plus, it’s A2-rated, so you can get fast application performance for an exceptional smartphone experience.7

Also Perfect for Your Action Camera and Drone

Performance and durability for your smartphones, tablets, action cameras, and drones.

Write Speeds of up to 90MB/s*

Capture fast-action photos or shoot 4K UHD video2 with write speeds of up to 90MB/s*. The SanDisk Extreme® microSDXC™ UHS-I Card lets you shoot more and transfer even faster. Quick read speeds of up to 160MB/s* save you time when transferring high-resolution images and 4K UHD videos.

Great for Capturing 4K UHD Video2

Ideal for recording outdoor adventures, weekend trips, or sporting events without skipping frames. The 400GB1 SanDisk Extreme® microSD™ UHS-I card lets you capture uninterrupted 4K UHD and Full HD video with its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.5

Easy File Recovery with RescuePRO® Deluxe Software

The card comes with a RescuePRO Deluxe data recovery software download offer.6 This software makes it easy to recover files that have been accidently deleted (download required).

Durable Design for Use in Extreme Environments

SanDisk Extreme® microSDHC™ and microSDXC™ UHS-I Cards are shockproof, temperature-proof, waterproof, and X-ray-proof,4 so you can enjoy your adventures without worrying about the durability of your memory card.

SanDisk Extreme<sup>®</sup> <i class="no-caps">microSD</i> UHS-I Card

SanDisk Extreme® microSD UHS-I Card

  • Capacity: 400 GB
  • Read Speed: up to 160MB/s*
  • Write Speed: up to 90MB/s*
  • Video Speed: V305 , U35 , A27
  • Form Factor: microSDXC

Manage Your Memory with
SanDisk Software

The SanDisk Memory Zone app offers an easy way to organize, browse, and back up files on your AndroidTM powered mobile device.


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Extreme microSD
Capacity 400 GB
Read Speed up to 160MB/s*
Write Speed up to 90MB/s*
Form Factor microSDXC
Video Speed V305 , U35 , A27
SD Adapter Yes
Performance1 Up to 160MB/s read speed and up to 90MB/s write speed
Dimension 0.59in x .043in x .03in (15.0mm x 11.0mm x 1.0mm)
Operating temperature -13ºF to 185ºF (-25ºC to 85ºC)
Storage temperature -40ºF to 185ºF (-40ºC to 85ºC)
Compatibility Compatible with microSDHC and microSDXC supporting host devices
Warranty Lifetime limited warranty

Lifetime Limited Warranty

30 years in Germany, Canada and regions not recognizing lifetime warranty, visit our warranty and user guide page for more information.

Where to Buy SanDisk Worldwide

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Not all devices support microSDXC memory card formats. Check with your device manufacturer for more details.

* Up to 160MB/s read speed; up to 90MB/s write speed. Based on internal testing; performance may be lower depending upon host device interface, usage conditions, and other factors. 1MB=1,000,000 bytes.

1 1GB=1,000,000,000 bytes. Actual user storage less.

2 Compatible device required. Full HD (1920x1080) and 4K UHD (3840 x 2160) support may vary based upon host device, file attributes, and other factors. See

3 Download and installation required. See

4 Card only. See for additional information and limitations.

5 UHS Speed Class 3 (U3) designates a performance option designed to support real-time video recording with UHS-enabled host devices. Video Speed Class 30 (V30), sustained video capture rate of 30MB/s, designates a performance option designed to support real-time video recording with UHS-enabled host devices. See

6 Registration required; terms and conditions apply.

7 4000 read IOPS, 2000 write IOPS. Results may vary based on host device, app type, and other factors.