
SanDisk Extreme®  
microSD™ UHS-I Card with Adapter
High-performance for flawless 4K video
Highlights
• Up to 160MB/s* read speeds to save 
time transferring high-res images and 
4K UHD videos.2[100MB/s for 32GB]
• Up to 90MB/s write speeds for fast 
continuous shots* [60MB/s for 
32GB-64GB]
• 4K UHD and Full HD-ready2 with UHS 
Speed Class 3 (U3) and Video Speed 
Class 30 (V30)
• Rated A2 for faster app loading and 
performance7 [A1 for 32GB]
• Built for and tested in harsh 
conditions; temperature-proof, 
water-proof, shock-proof and x-ray 
4
proof
• Compatible with SanDisk 
MobileMate® USB 3.0 microSD™ Card 
Reader for speeds up to 160MB/s*
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SanDisk Extreme® microSD™ UHS-I Memory Card
Get extreme speeds for fast transfer, app performance and 4K UHD video.
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Ideal for your Android™ smartphone, action cameras or drones, this high-
performance microSD™ card handles 4K UHD video recording, Full HD video 
and high-resolution photos. The SanDisk Extreme® microSDXC™ memory card 
reads up to 160MB/s* [100MB/s for 32GB] and writes up to 90MB/s* 
[60MB/s for 32-64GB].
Great for Capturing 4K UHD Video
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Ideal for recording outdoor adventures, weekend trips, or sporting events 
without skipping frames. With up to 1TB1, the SanDisk Extreme® microSD™ 
UHS-I card lets you capture uninterrupted 4K UHD and Full HD video2 with 
its UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) ratings.
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Load Apps Faster with A2
Get faster app performance for an outstanding smartphone experience 
thanks to the SanDisk Extreme® microSDXC card’s A2 Specification 
[A1 for 32GB].
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Terms and Conditions apply.
Includes:
• SanDisk Memory Zone app3 
Manage your smartphone 
memory and media files 
• Includes RescuePRO Deluxe 
1-year data recovery software 
download oer
• Adapter for compatibility with 
full size SDHC™ and SDXC™ 
devices
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SanDisk Extreme® microSD™ UHS-I Card with Adapter 
Specifications
Form Factor microSDHC™ and microSDXC ™
Available Capacities microSDHC: 32GB 
microSDXC: 64GB, 128GB, 256GB, 400GB,  
512GB, and 1TB
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Performance/Speed 128GB-1TB: up to 160MB/s* read and 90MB/s* 
write speed 
64GB: up to 160MB/s* read; 60MB/s* write speed  
32GB: up to 100MB/s* read and 60MB/s* write speed
Dimensions microSDXC: 0.59in x 0.43in x 0.03in (14.99mm x 
10.92mm x 1.02mm) 
SD adapter: 1.26in x 0.94in x 0.08in (24mm x 32mm x 
2.1mm)
Operating Temperature -13°F to 185°F (-25°C to 85°C)
Storage Temperature -40°F to 185°F (-40°C to 85°C)
Compatibility Compatible with microSDHC™ and 
microSDXC™ UHS-I supporting host devices 
Includes adapter for compatibility with full size 
SDHC™ and SDXC™ devices
Warranty Lifetime limited9 (US only) 
Lifetime
9
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For more information, please visit  
www.sandisk.com
At SanDisk®, we’re expanding the possibilities of data 
storage. For more than 25 years, SanDisk’s ideas  
have helped transform the industry, delivering next 
generation storage solutions for consumers and 
businesses around the globe.
Western Digital Technologies, Inc. 
951 SanDisk Drive | Milpitas | CA 95035 | USA
Western Digital Technologies, Inc. is the seller of record 
and licensee in the Americas of SanDisk® products.
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Not all devices support microSD memory card formats. Check with your device manufacturer for more details. 
* For 128GB-1TB: Up to 160MB/s read speeds, engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s, requires compatible devices 
 capable of reaching such speeds. Up to 90MB/s write speeds. For 64GB: Up to 160MB/s read speeds, engineered with proprietary technology to reach  
 speeds beyond UHS-I 104MB/s, requires compatible devices capable of reaching such speeds. Up to 60MB/s write speeds. For 32GB: Up to 100MB/s read  
 speeds; up to 60MB/s write speeds. 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. [For 1TB: 1TB=1,000,000,000,000 bytes.] Actual user storage less. 
2
 Compatible device required. Full HD (1920x1080) and 4K UHD (3840x2160) support may vary based upon host device, file attributes and other factors. 
 See www.sandisk.com/HD 
3
 See www.sandisk.com/memoryzone 
4
 Card only. See www.sandisk.com/proof 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 www.sdcard.org/consumers/speed. 
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 Registration required; terms and conditions apply. 
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 For 64GB-1TB: A2 performance is 4000 read IOPS, 2000 write IOPS. For 32GB: A1 performance is 1500 read IOPS, 500 write IOPS. Results may vary 
 based on host device, app type and other factors. 
8
 Read only; based on internal testing. Based on standard UHS-I microSD card speed of 100MB/s. Results may vary based on host device, file attributions  
 and other factors. 
9
 30-year warranty in Germany, Canada, and regions not recognizing lifetime warranty. See www.sandisk.com/wug  
SanDisk, the SanDisk logo, MobileMate, RescuePRO and SanDisk Extreme are registered trademarks or trademarks of Western Digital Corporation or its aliates in 
the US and/or other countries. The microSD, microSDHC and microSDXC marks and logos are trademarks of SD-3C, LLC. Android and Google Play are trademarks 
of Google LLC. All other marks are the property of their respective owners. ©2019 Western Digital Corporation or its aliates. All rights reserved.
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